a(n) extinction involves the massive die-off of many millions of different of organisms in a geologically short period of time.
Answers
A mass extinction involves the rapid and widespread extinction of many different species in a geologically short period of time, typically defined as a loss of at least 75% of all species on Earth.
There have been five mass extinction events throughout the history of the Earth, with the most famous being the Cretaceous-Paleogene extinction event that occurred approximately 66 million years ago and led to the extinction of the dinosaurs. Mass extinctions are often associated with major environmental upheavals, such as volcanic activity, asteroid impacts, or changes in climate, which can disrupt ecosystems and cause widespread species loss.
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Related Questions
We identify organisms as belonging to the same species if they are capable of
a. inhabiting similar habitats.
b. having the same life expectancies.
c. producing fertile offspring.
d. evolving comparable adaptations.
Answers
The biological species concept, which is one of the most widely used definitions of a species, states that organisms belong to the same species if they can interbreed and produce fertile offspring. This means that members of the same species share a common gene pool and can successfully reproduce with one another, contributing to the next generation.
The cells produced in mitosis are called what
Answers
Answer:
I am pretty sure it's haploid sex cells
Answer:
the cells produced in mitosis are diploid body cells
2.
3.
4.
5.
6.
8.
Word Bank: Simple cuboidal, Stratified cuboidal, Simple columnar, Stratified columnar, Transitional, Pseudo-stratified columnar, Simple squamous, Stratified squamous +
Answers
The given tissue diagram represents following tissues:
2. Stratified cuboidal
3. Pseudo-stratified columnar
4. Stratified squamous
5. Simple cuboidal
6. Simple squamous
8. Transitional
What is epithelium?
All of your body's internal and external surfaces are covered by a type of tissue called epithelium, which also lines your digestive, reproductive, and excretory tracts. They carry out numerous tasks, including secretion, sensing, absorption, and protection.
Epithelial tissue is divided into three types based on the morphology of the cells: squamous, cuboidal, and columnar.The tissue is classified as simple or stratified depending on the number of layers. Pseudo-stratified, ciliated, or transitional are examples of sub classifications. The cells of the glandular epithelium synthesize and expel a variety of macromolecules.
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what are the organs of the simple excretory systems of earthworms called?
Answers
The organs of the simple excretory systems of earthworms are called nephridia.
What is an excretory system?
Excretion is the method by which metabolic wastes and toxic substances are removed from the body by living organisms. The removal of waste substances from the body is known as excretion. Excretion is one of the most crucial biological processes since waste products can build up and cause harm if they are not eliminated. All organisms, including plants, animals, and humans, have excretory systems that assist in the elimination of waste products.
Nephridia are the organs of the simple excretory systems of earthworms. These are very basic excretory systems that are present in a variety of invertebrates. Nephridia are responsible for regulating the body's fluid and electrolyte balance, as well as excreting metabolic waste products such as ammonia.
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Earthworms have a simple excretory system consisting of a pair of Nephridia or nephridium (sing.) which are the organs of the simple excretory systems of earthworms.Nephridia in earthworms is the excretory organs and eliminates metabolic waste in the form of urine.
It also plays an important role in regulating the concentration of body fluids and salt balance. The earthworm has two pairs of Nephridia, the septal nephridia, and the pharyngeal nephridia.The septal nephridia consists of a coiled tube that runs from the dorsal body wall down to the ventral body wall in each segment of the earthworm. It is involved in excreting waste products from the body of the earthworm. The coiled tube has a funnel-like structure called the nephrostome, which collects body fluids and metabolic wastes.
The nephrostome leads into the tubular nephridium that removes the waste product from the body and excretes it to the outside through a small pore called a nephridiopore.Pharyngeal nephridia are located in the earthworm's pharynx and are involved in the excretion of nitrogenous wastes from the body. It is present in the earthworm's mouth cavity and helps in the discharge of waste from the pharynx to the outside of the body through the pharyngeal nephridiopore.
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GIVING 100 POINTS AND BRAINLIEST FOR BEST ANSWER!!!!
NEED AN ANSWER AS SOON AS POSSIBLE
Which organism is most reliant on other organisms, natural processes, or both for reproduction? Explain your answer.
Answers
Answer:
The organism most reliant on other organisms for reproduction is a parasite. Parasites rely on other organisms, such as their host, for reproduction as they lack the necessary reproductive organs. They must rely on the reproductive organs of their hosts in order to reproduce. Additionally, parasites may rely on natural processes such as environmental conditions in order to reproduce.
Answer:
sexual reproducers
Explanation:
season, and where other organisms are
how to identify oxygen and carbon dioxide?
Answers
Answer:
Place a glowing splint in the test tube, and if it reignites, it could be oxygen. Place a burning splint into a test tube, and if it goes out, it could be carbon dioxide. Or, place carbon dioxide gas in limewater, and if it turns milky and gets chunks, it is carbon dioxide.
Answer: Place a glowing splint in the test tube, and if it reignites, it could be oxygen. Place a burning splint into a test tube, and if it goes out, it could be carbon dioxide. Or, place carbon dioxide gas in limewater, and if it turns milky and gets chunks, it is carbon dioxide.
Explanation:
i have done it before:)))
which organ releases insulin to control blood glucose levels?
Answers
Pancreas releases insulin to control blood glucose levels.
Pancreas is a glandular organ situated in the abdominal cavity behind the stomach. It has an endocrine function and an exocrine function. The endocrine function is carried out by the islets of Langerhans, which are responsible for the production and secretion of hormones such as insulin and glucagon. The exocrine function of the pancreas is to produce and secrete digestive enzymes into the small intestine.Insulin is a hormone that is produced by the beta cells of the islets of Langerhans in the pancreas. Insulin is responsible for regulating blood glucose levels by increasing the uptake of glucose by cells and tissues such as muscle, liver, and adipose tissue. Insulin also promotes the storage of glucose in the liver and muscle as glycogen and inhibits the breakdown of glycogen into glucose. When blood glucose levels are high, the pancreas secretes insulin into the bloodstream to bring glucose levels back to normal.
Thus, the pancreas releases insulin to control blood glucose levels.
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Which statements describe how maps represent Earth's surface?
Answers
Answer:
these are the options ;
They show all or part of Earth.
They have a three-dimensional surface.
They use symbols to represent land features.
They correspond to distances on Earth using a scale.
They represent the relative shape of Earth accurately.
Explanation:
i will choose this ;
They show all or part of Earth.
They use symbols to represent land features.
They correspond to distances on Earth using a scale.
- Maps are two-dimensional pictorial representation of Earth or part of Earth. Various symbols are used to depict features of land. Distances are scaled to actual distances. The Earth is roughly spherical in shape. This cannot be represented on two dimensional picture. Hence, the depiction of Earth is distorted in shape.
The correct options would be:
They show all or part of Earth.
They use symbols to represent land features.
They correspond to distances on Earth using a scale.
Why was modern classification invented?
Traditional classification could not classify all living things.
Scientists realized related organisms do not share similar characteristics.
Scientists understood that species share a common ancestor.
Modern classification is faster and easier to use.
Answers
Answer:
Scientists understood that species share a common ancestor.
Explanation:
Below is a picture of the codon wheel.
Explain how to use this wheel to determine
the amino acid that codes for the RNA triplet
"CAC"
Answers
The first nucleotide of the RNA triplet "CAC" is "C", so you would look for the "C" on the outermost circle.
What is the Codon Wheel?The codon wheel is a circular table that helps to determine the amino acid that is encoded by a particular RNA triplet, also known as a codon.
The wheel is divided into three concentric circles, with the first and second circles representing the first and second nucleotide positions of the codon, and the third circle representing the third nucleotide position of the codon.
To use the codon wheel, you need to locate the first nucleotide of the codon on the outermost circle of the wheel.
How to determine the amino acid that codes for the RNA triplet "CAC"In this case, the first nucleotide of the RNA triplet "CAC" is "C", so you would look for the "C" on the outermost circle. Once you have located the first nucleotide, you need to follow the circle inward to find the second nucleotide.
In this case, the second nucleotide of the RNA triplet "CAC" is "A", so you would follow the "C" circle inward to the "A" circle.
Finally, you need to locate the third nucleotide on the innermost circle of the wheel. In this case, the third nucleotide of the RNA triplet "CAC" is also "C", so you would look for the "C" on the innermost circle.
The amino acid that is encoded by this codon is located in the center of the wheel, and in this case, the amino acid that is encoded by the RNA triplet "CAC" is histidine (His).
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identify the characteristic of the transverse waves that changed from wave A (ORANGE) to wave B (TEAL
Answers
The characteristics or properties that will make a transverse wave change from wave A(Orange) to wave B (TEAL) is refraction.
What is a transverse wave?Transverse waves are those waves that travel in a perpendicular direction to the vibration of their medium.
The properties of transverse waves include
ReflectionRefractionPolarizationDiffraction.What is Dispersion of white light?
Dispersion is the phenomenon of light of different wavelengths being separated by refraction, by different about when the light passes through a glass prism.
Light is a transverse wave and the characteristic of light that will cause it to undergo Dispersion is refraction.
Hence, the characteristics or properties that will make a transverse wave change from wave A(Orange) to wave B (TEAL) is refraction.
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Answer:
The answer is wave length.
Explanation:
The wavelength changed from wave A to wave B. Wavelength is the distance between corresponding peaks or troughs.
A physician prescribes one 0.7
mg tablet of a medication to be taken twice a day for 15 days. How
many total mcg of the medication will the patient have taken after
15 days?
74. A physician prescribes one \( 0.7 \mathrm{mg} \) tablet of a medication to be taken twice a day for 15 days. How many total mcg of the medication will the patient have taken after 15 days? a. \( 2
Answers
The patient will have taken a total of 21,000 mcg of the medication after 15 days. The correct option is A, 21,000.
Given,
Prescribed amount of tablet = 0.7 mg
The tablet has to be taken twice a day for 15 days
First, convert mg into mcg.
1 mg = 1000 mcg
0.7 × 1 mg = 0.7× 1000 mcg
0.7 mg = 700 mcg
Now calculating the total medication that the patient has taken in 15 days:
Total medication = 2 ×1 5 × 700 mcg
Total medication = 21000 mcg
Total medication = 21000 mcg.
Therefore, option A is correct.
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A physician prescribes one 0.7 mg tablet of medication to be taken twice a day for 15 days. How many total mcg of the medication will the patient have taken after 15 days?
A) 21,000 mcg
B) 10,500 mcg
C) 21 mcg
D) 10.5 MCG
37 With which kingdoms do bacteria share the same genetic code?
A
animal, plant, fungus and protoctist
B
animal, plant and fungus only
C
animal and plant only
D
animal only
Answers
Answer:
The answer you are looking for is A
The bacteria share the same genetic code with animal, plant, fungus and Protista. The correct option is A.
What is genetic code?The set of instructions utilized by living cells to convert data from genetic material contained in proteins is known as the genetic code.
Codons, or words, are the four letters that make up each of the three-letter words that make up a codon in DNA.
The order of bases in DNA or RNA makes up the genetic code. Codons are formed by groups of three nucleotides, and each codon represents one amino acid (or start or stop).
Following the start codon, the codons are read one after the other until a stop codon is reached. The genetic code is unambiguous, redundant, and universal.
The genetic code of bacteria is the same as that of plants, animals, fungi, and protists.
Thus, the correct option is A.
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What systems can you think of? List one or two examples of things that you think might be systems
Answers
Systems can be found in various domains, such as biology, ecology, society, information, and the physical world. Examples include the nervous system, ecosystems, economic systems, computer networks, and the solar system. Systems consist of interconnected elements working together to fulfill a common purpose.
Systems are structures or sets of interconnected elements that work together to achieve a common purpose. There are various types of systems found in different domains. Here are a few examples:
1. Biological Systems:
- The nervous system: It includes the brain, spinal cord, and nerves, which work together to transmit signals and coordinate bodily functions.
- The cardiovascular system: It consists of the heart, blood vessels, and blood, responsible for circulating oxygen, nutrients, and hormones throughout the body.
2. Ecological Systems:
- Ecosystems: A complex system comprising living organisms (plants, animals, microorganisms) interacting with their physical environment (soil, water, climate) in a specific geographical area.
- Food webs: Systems that depict the interconnectedness of various organisms in an ecosystem through their feeding relationships.
3. Social Systems:
- Economic system: A network of individuals, organizations, and institutions involved in the production, distribution, and consumption of goods and services within a society.
- Political system: Structures and processes through which a society governs itself, including institutions, laws, and decision-making mechanisms.
4. Information Systems:
- Computer networks: Interconnected devices and communication protocols that enable the exchange of data and information between computers.
- Database systems: Organized collections of data and software designed to efficiently store, retrieve, and manage large amounts of information.
5. Physical Systems:
- Solar system: A system consisting of the sun, planets, and other celestial bodies held together by gravitational forces.
- Climate system: The interactions between the atmosphere, hydrosphere, biosphere, and geosphere that influence long-term weather patterns and climate conditions.
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How water resources are being polluted and how can we conserve them ?
Answers
Where would contour farming and terraces be most likely to be found? a. On flat, expansive grasslands b. In wetlands c. On hilly, mountainous farm land d. Near the coast.
Answers
Farming is an agriculture practice, in which crops are harvested, cultivated, and yielded over a period of time. It can be of several types such as contour, terraces, nomadic, and sedentary farming.
What is Contour Farming?
Contour farming refers to the cultivation and growing of crops in sequential rows. The rows are level around the hill. Contour farming is found in hills and mountainous farmlands. The farming practice is common in European countries.
What is Terrace farming?Terraces are the farming practice, in which the farmlands are formed by turning hills to form a ridged platform. Terraces are also found in the hilly regions are common in the countries China, Japan, and Southeast Asia.
Thus, contour and terraces farming is the type of agricultural practice done in the hilly and mountainous regions.
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Answer:
C
Explanation:
EDGE 2022
How does the leafy shoot of
the strangler fig affect the tree
it is growing around?
Answers
Answer:
Once established, the young strangler figs begin sending aerial roots down to the ground, where they quickly dive into the soil and anchor themselves. Once in contact with the ground, the fig enters a growth spurt, plundering moisture and nutrients that the host tree needs
Explanation:
Once in contact with the ground, the fig enters a growth spurt, plundering moisture and nutrients that the host tree needs.
Nitrous oxide gas molecules diffusing across a cell's plasma membrane is an example of ? A) diffusion across the lipid bilayer. B) facilitated diffusion C) active transport D) osmosis. E) cotransport
Previous question
Answers
Nitrous oxide gas molecules diffusing across a cell's plasma membrane is an example of diffusion across the lipid bilayer so the correct answer is option (A).
The diffusion of nitrous oxide gas molecules across a cell's plasma membrane is an example of diffusion across the lipid bilayer. The lipid bilayer is the main component of the cell membrane and consists of a double layer of phospholipids. The structure of the lipid bilayer allows for the passive diffusion of small, nonpolar molecules like nitrous oxide.
Unlike facilitated diffusion, which involves the use of membrane proteins to assist in the movement of specific molecules, the diffusion of nitrous oxide does not require any specific transporters or channels. Active transport and osmosis involve the movement of molecules against their concentration gradient or the movement of water across a selectively permeable membrane, respectively, neither of which applies to the diffusion of nitrous oxide.
Cotransport, on the other hand, refers to the coupled transport of two different molecules across a membrane. Since nitrous oxide diffuses directly across the lipid bilayer without the need for coupling with another molecule, it is not an example of cotransport.
In summary, the diffusion of nitrous oxide gas molecules across a cell's plasma membrane is an example of diffusion across the lipid bilayer.
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how is glaciers melting in alaska a problem for humans
Answers
Answer:
The water will rise
Explanation:
We can drown
Question 1 of 10 Which of the following is a primary pollutant?
Answers
The correct option is D. CO, which comes from fossil fuels powered engines such as cars.
What are primary pollutants?
Primary pollutants are air pollutants that are directly emitted from a source. A secondary pollutant forms in the lower atmosphere when these primary pollutants react in the atmosphere.
Examples of primary pollutants include particulates, nitrogen oxide, sulfur oxide, carbon monoxide, ozone, etc.
The most common primary pollutants are nitrogen dioxide (EPA), ozone (EPA), lead (EPA), carbon monoxide. Among these, carbon monoxide is the largest primary pollutant formed due to result of incomplete combustion of organic matter.
Therefore, the correct option is D. CO, which comes from fossil fuels powered engines such as cars.
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How does the motion of particles in a gas change as the gas cools? (1 point)
They move more slowly.
b
They move in a more circular pattern.
ос
They move faster.
d
They move more randomly.
Answers
.A loss of the normal ability to form a blood clot with internal or external bleeding is:
A.
coagulopathy.
B.
hemodialysis.
C.
anemia.
D.
peritoneal dialysis.
Answers
The correct answer is A. Coagulopathy. Coagulopathy is a medical condition where the body loses its normal ability to form blood clots, leading to excessive bleeding. It can be caused by a variety of factors such as genetics, medications, liver disease, or vitamin deficiencies.
The Symptoms of coagulopathy include excessive bleeding from cuts or wounds, easy bruising, and prolonged bleeding after dental or surgical procedures. Treatment options depend on the underlying cause and may include medications, blood transfusions, or surgery. It is important to seek medical attention if you suspect you have a bleeding disorder or coagulopathy as it can be life-threatening if left untreated. The loss of the normal ability to form a blood clot with internal or external bleeding is: Coagulopathy is a condition in which the blood's ability to clot is impaired. This can lead to excessive bleeding or, in some cases, the formation of abnormal blood clots. Coagulopathy can result from various factors, including genetic conditions, certain medications, or underlying medical issues. Treatment depends on the underlying cause and may include medications to promote clotting or blood transfusions, among other interventions.
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Q12
Water soluble hormones:
W. are mostly transported dissolved in the plasma
X. are removed more slowly from the circulation than lipid
soluble hormones
Y. activate receptors on the cell membrane
Answers
Water-soluble hormones activate receptors on the cell membrane and are mostly transported dissolved in the plasma. Option (y)
The water-soluble hormones refer to those hormones that are unable to penetrate the cell membrane because of their hydrophilic properties. They include peptides, catecholamines, and eicosanoids. Water-soluble hormones activate receptors on the cell membrane and are mostly transported dissolved in the plasma.
They interact with the cell membrane receptors, which activate the second messenger system and mediate the target cell's response. The removal of the water-soluble hormone from circulation is faster than that of the lipid-soluble hormone. This is because they are excreted out of the body with the help of kidneys or undergo rapid metabolism in the liver. The lipid-soluble hormone, on the other hand, binds to the plasma protein for transport, which slows its removal from circulation. Thus the correct Option (y)
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If the PH or the temperate where the enzyme is located changes, the enzyme is very likely to
denature (become inactive/ stop working)
True
False
Answers
Answer:
very true
Explanation:
they dont like change:)
Enzymes are proteins that help speed up metabolism, or the chemical reactions in our bodies.
If the PH or the temperate where the enzyme is located changes, the enzyme is very likely to denature is a true statement.
What are enzymes?The enzymes show the best activity at optimum temperature and pH. When there is a change in the temperature, the structure of the enzyme is changed.Any change in the temperature or pH will result in the breaking of the peptides or disulfide bonds. This will disturb the tertiary structure of the enzyme. At the lower temperature, the enzymes get deactivated while, at a higher temperature, it gets denatured.Thus, we can conclude that the correct option is True.
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this answer i need pls ill mark brainliest
Answers
All - growth, exchange of gases, excretion, reproduction, and death (option d).
All living organisms undergo various life processes to maintain their existence. Let's analyze each option to determine which life processes are carried out by an organism's cells:
A. Only growth and exchange of gases: While cells are involved in growth and exchange of gases, they also participate in other life processes. This option is incomplete.
B. Only growth, exchange of gases, and reproduction: Cells play a crucial role in reproduction as they are responsible for the production of gametes and the process of cell division. However, there are additional life processes that cells also undertake.
C. Only growth, exchange of gases, excretion, and reproduction: This option includes excretion in addition to growth, exchange of gases, and reproduction. Cells participate in excretion by eliminating waste materials. However, there is one more life process that cells experience.
D. All - growth, exchange of gases, excretion, reproduction, and death: This option encompasses all the mentioned life processes. Cells are involved in growth as they undergo cell division and increase in number. They exchange gases through processes like respiration. Cells excrete waste products. They participate in reproduction through the formation of gametes and cell division. Lastly, cells also experience death as they have a limited lifespan.
Therefore, the correct answer is D. All - growth, exchange of gases, excretion, reproduction, and death.
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an engine cut-off lanyard helps to reduce the risk of what?
Answers
propeller injury
An engine cut-off lanyard helps to reduce the risk of striking a person in the water with a propeller. The correct answer is option 2.
A propeller is a device with rotating blades that is used to propel a vehicle through a fluid, such as air or water. In the context of boating, a propeller is a rotating device that is attached to an engine and used to propel a boat through the water.
An engine cut-off lanyard is a safety device that is attached to the operator of a boat and to the engine's kill switch. If the operator is thrown from the boat, the lanyard will pull the kill switch, stopping the engine and preventing the propeller from causing injury to the operator or others in the water.
Therefore, an engine cut-off lanyard is an important safety feature that can help prevent accidents and injuries on the water. Option 2 is the correct answer.
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The given question is incomplete. The complete question is:
An engine cut-off lanyard helps to reduce the risk of what?
1. Stopping the engine if the oil level gets low·
2. Striking a person in the water with a propeller·
3. Starting the engine without proper choke applied·
4. Over-revving an outboard engine at idle
Whale primary functions
Answers
The primary functions of whales include feeding, reproduction, communication, and migration.
Whales are primarily filter feeders or predators, depending on the species.
Filter-feeding whales, such as baleen whales, have baleen plates in their mouths that allow them to filter out small prey, such as krill or small fish, from large volumes of water.
Predatory whales, such as toothed whales, hunt and feed on various marine organisms, including fish, squid, and marine mammals.
Reproduction is another important function for whales. Most whale species have a gestation period of several months, with females giving birth to a single calf.
The calves are nursed with milk from their mothers and rely on their care for a period of time until they become independent.
Communication is vital for whales, as they rely on vocalizations to communicate with other members of their pod.
Whales produce a variety of sounds, including songs, clicks, and whistles, which serve purposes such as mating, social interactions, and navigation.
Migration is a common behavior observed in many whale species. Whales undertake long-distance migrations, often covering thousands of kilometers, to reach feeding grounds in nutrient-rich waters or to reproduce in specific breeding areas.
These migrations are driven by seasonal changes in food availability and environmental conditions.
In summary, the primary functions of whales encompass feeding, reproduction, communication, and migration, all of which are essential for their survival and successful adaptation to their marine environments.
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You have two populations of beetles, one with 100 individuals and one with 500 individuals. Two
trees randomly fall - one on each population of beetles. Each tree kills 50 beetles in each
population and causes genetic drift. Which of the following is true?
Answers
Answer:
The tree falling on the smaller population will have a bigger effect on allele frequency
Explanation:
The falling trees each killed 50 beetles. In the smaller population of 100 beetles this killed 50% of the beetles (50 out of 100). In the larger population the tree only killed 10% of the beetles (50 out of 500). Because the tree killed a higher percentage of beetles in the smaller population, it also changed the allele frequency by a bigger percent. So, genetic drift has a much bigger effect on allele frequency in smaller populations.
Treating circulatory disease: Angioplasty is a medical procedure in which an obstructed blood vessel is widened. In some cases, a wire mesh tube, called a stent, is placed in the vessel to help it remain open. A study was conducted to compare the effectiveness of a bare metal stent with one that has been coated with a drug designed to prevent reblocking of the vessel. A total of 5314 patients received bare metal stents, and of these, 832 needed treatment for reblocking within a year. A total of 1119 received drug-coated stents, and 140 of them required treatment within a year. Can you conclude that the proportion of patients who needed retreatment is less for those who received drug-coated stents? Let p₁ denote the proportion of patients with bare metal stents who needed retreatment and p₂ denote the proportion of patients with drug-coated stents who needed retreatment. Use the a=0.05 level of significance and the P-value method with the TI-84 Plus calculator.
Answers
Based on the given information, we can analyze the effectiveness of bare metal stents compared to drug-coated stents in terms of retreatment rates. So as per the given information the P-value is 0.151.
To determine if the proportion of patients needing retreatment is lower for those who received drug-coated stents, we can conduct a hypothesis test using the given sample proportions and the P-value method with a significance level of α=0.05.
The null hypothesis (H₀) states that there is no difference in the proportion of patients needing retreatment between bare metal stents and drug-coated stents (p₁ = p₂). The alternative hypothesis (H₁) states that the proportion of patients needing retreatment is lower for drug-coated stents (p₁ > p₂).
By performing the hypothesis test and calculating the P-value, we can assess whether the observed data provides enough evidence to reject the null hypothesis in favor of the alternative hypothesis. The TI-84 Plus calculator can be used to calculate the P-value, which will help determine the statistical significance of the results.
For the group with bare metal stents:
n₁ = 5314 (total patients with bare metal stents)
X₁ = 832 (patients needing retreatment with bare metal stents)
p₁ = X₁ / n₁
For the group with drug-coated stents:
n₂ = 1119 (total patients with drug-coated stents)
X₂ = 140 (patients needing retreatment with drug-coated stents)
p₂ = X₂ / n₂
We can calculate the test statistic using the formula:
z = (p₁ - p₂) / sqrt(p(1 - p)(1/n₁ + 1/n₂))
where p = (X₁ + X₂) / (n₁ + n₂)
so the P-value is 0.151.
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Which of the following is an example of a non-living organism:
Fungi
Bacteria
Parasite
Virus
Answers
Answer:
D
Explanation:
Virus