Answer:
Disease
Explanation:
More people that catch the disease, the more people get it because there is more to spread toword
N a culture of bacteria, a sample is taken at 10:00am and contains 1000 cells per ml. A second sample at 8:00pm has 10,000 cells per ml. What is the generation time ?
The generation time of the bacteria in the following culture is approximately 3.01 hours.
To determine the generation time of bacteria, we can use the formula:
Generation time (t) = (Time elapsed (T) / Number of generations (n))
In this case, we have a time difference of 10 hours between the two samples.
To calculate the number of generations, we can use the formula:
Number of generations (n) = log(N₂ / N₁) / log(2)
Where N₂ is the final cell count (10,000 cells/ml) and N₁ is the initial cell count (1,000 cells/ml).
Plugging in the values, we get:
Number of generations (n) = log(10,000 / 1,000) / log(2) ≈ 3.32
Now, we can calculate the generation time:
Generation time (t) = Time elapsed (T) / Number of generations (n)
Generation time (t) = 10 hours / 3.32 ≈ 3.01 hours
Therefore, the generation time of the bacteria in this culture is approximately 3.01 hours.
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What type of interaction(s) is NOT involved in the binding of a substrate to a normally functioning enzyme
Answer:
Explanation:
Non covalent bond are mostly involved in the binding of enzyme to active site, example include hydrogen bonds, Ionic bond, hydrophobic interaction and a transient covalent bond.
A permanent covalent bond is usually not involved in the binding of substrate to active site where the reaction rakes place.
covalent bond is a chemical bond, its involves the sharing of electron pairs between atoms. It is mostly used for interraction between metals this is because the bond formed at usually not easily breakable
Answer:
Options are not given, here are the options.
a. H bonds
b. a transient covalent bond
c. ionic bonds
d. a permanent covalent bond
e. hydrophobic interactions
The correct option is D.
A permanent covalent bond.
Explanation:
A permanent covalent bond is not involved in the binding to a normally functioning enzyme because this bond entail sharing of electron pairs between atoms unequally in a substance and the donor is usually Lewis base or ligand and the acceptor is Lewis acid or central atom.
These bonds are Majorly important in interactions between transition metals and organic ligands like Iron 11 Fe2+ present in hemoglobin and the cytochrome .
A person riding a bicycle wants to move the bicycle forward. She moves her legs up and down on the bicycle's pedals. Then the rider wants to stop the bicycle. She stops pedaling and the bicycle slows. She takes one of her feet off a pedal and puts her foot on the ground to stop the bicycle and stay upright.
Which of these best identifies a pathway of systems in the rider's body, as described in this scenario?
*Hint- the answers are combining the muscular system and skeletal system into the "musculoskeletal system".
A. nervous system → musculoskeletal system – circulatory system - nervous system
B. nervous system - musculoskeletal system — nervous system musculoskeletal system
C. musculoskeletal system - nervous system - circulatory system – musculoskeletal system
D. musculoskeletal system – circulatory system – musculoskeletal system - nervous system C
Answer:
c
Explanation:
sana makatulong HAHAHAHA
Answer:
The answer is B
Explanation:
Make a Punnett Square to show how a red apple tree and another red
apple tree could produce a tree with yellow apples.
Answer:
It depends on the genotypes
lets say red apples is dominant (R) and yellow is recessive (y)
R y
R RR Ry
y Ry yy
If both parents have the genotype Ry, 1 baby tree will produce yellow apples
Which tissues, organs, and biological systems are involved in the process, and how the systems interact during the process? Explain the interaction of the different systems and why they have to work together.
The process of digestion involves several tissues, organs, and biological systems, which work together to break down food and absorb nutrients. These systems include the digestive system, the circulatory system, the nervous system, and the endocrine system.
The mouth, oesophagus, stomach, small intestine, large intestine, pancreas, liver, and gallbladder are among the organs that make up the digestive system. These organs work together to digest food, break it down into its component parts, and absorb nutrients.
The mouth and stomach break down food mechanically, while the small intestine and pancreas break it down chemically. The liver produces bile, which helps to break down fats, and the gallbladder stores and releases bile as needed.
The circulatory system is also involved in digestion, as it transports nutrients from the small intestine to the rest of the body. The nutrients are absorbed into the bloodstream and transported to the liver for processing.
The digestive, circulatory, nervous, and endocrine systems work together to break down food, absorb nutrients, and regulate digestion.
The nervous system helps to regulate digestion by sending signals to the digestive system to stimulate or inhibit the release of digestive enzymes and hormones. The vagus nerve, which connects the brain to the digestive system, plays an important role in this process.
The endocrine system produces hormones that regulate digestion, such as insulin and glucagon, which help to control blood sugar levels. These hormones are produced by the pancreas and released into the bloodstream.
All of these systems work together to ensure that food is broken down and nutrients are absorbed efficiently. For example, the digestive system breaks down food into small enough particles for absorption, while the circulatory system transports the nutrients to the rest of the body.
The nervous system and endocrine system regulate the digestive process to ensure that it occurs at the right pace and that nutrient absorption is optimized.
These systems must work together to ensure that the body can extract the nutrients it needs from food and maintain overall health.
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14. In an oxygenic
photosynthesis,
the green
and the purple bacteria do not use which
of the following one as an electron source?
In oxygenic photosynthesis, the green and purple bacteria do not utilize \(H_2O\). Cyanobacteria (even comprehended as blue-green algae) describe a group of bacteria that produce their food by the method of photosynthesis, during which they utilize carbon dioxide and emit oxygen.
What is oxygenic photosynthesis?Cyanobacteria (even comprehended as blue-green algae) describe a group of bacteria that produce their food by the method of photosynthesis, during which they utilize carbon dioxide and emit oxygen.
In oxygenic photosynthesis, the green and purple bacteria do not utilize \(H_2O\).
Due to their capacity to create oxygen as a byproduct of photosynthesis, Cyanobacteria exist considered to be the earlier oxygenic phototrophs that transformed the earlier low-oxygen atmosphere (reducing atmosphere) into an oxidizing atmosphere. It exists directed to change Earth's living conditions and development.
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Structures of the Cell Quick Check
The endomembrane system is a collection of membrane-bound organelles in eukaryotic cells that handles the production and processing of proteins that will be used in
organelles or exported to the outside of the cell. The rough endoplasmic reticulum, Golgi apparatus, and smooth endoplasmic reticulum all have parts to play in this
system. These functions are
respectively
Identify the answer choice that correctly fills in the blank in the above passage.
(1 point)
O DNA making, DNA packaging, and DNA storing
O protein packaging, protein making, and lipid production
O protein making, protein packaging, and lipid production
O DNA packaging, DNA making, and DNA storing
The statement that correctly fills in the blank spaces in the above passage about the rough endoplasmic reticulum, Golgi apparatus, and smooth endoplasmic reticulum is protein making, protein packaging, and lipid production respectively.
What is endomembrane system of the cell?The endomembrane system of the cell is the collection of membrane-bound organelles in eukaryotic cells that handles the production and processing of proteins that will be used in organelles or exported to the outside of the cell.
These organelles together with their functions include the following:
Rough endoplasmic reticulum: This is the organelle that is used by the cell to produce proteins.Golgi apparatus: This is the organelle that is used by the cell to package proteins into membrane-bound vesicles.Smooth endoplasmic reticulum: This is the organelle that is used by the cell for lipid production.Learn more about cell here:
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Answer: protein making, protein packaging, and lipid production
Which of these is a drawback of oil extraction from tar sands?
When compared to producing the same amount of conventional crude, tar sands extraction emits up to three times higher greenhouse gas emissions.
Which dangers are associated with the mining of tar sands?Additionally, it pollutes freshwater supplies, depletes them, and turns ponds of hazardous waste into vast bodies of water. Piles of petroleum coke, a dangerous byproduct of refining the sticky, black liquid, are created. In actuality, tar sands oil is among the most harmful, carbon-intensive, and poisonous fuels on the planet. When compared to normal crude oil, it produces three times as much greenhouse gas emissions.It releases greenhouse gases that are extremely detrimental to our environment throughout the extraction process.For more information on oil extraction kindly visit to
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Imagine this scenario: One hundred rock pocket mice, 99 with dark fur and one with light fur, are transported to a beach in Florida and released to reproduce and survive. Light fur gives a survival advantage of 50 percent. Approximately how many years would it take for the vast majority of the population to end up with light fur?
Answer:
It is difficult to give an exact answer to this question, as it depends on a variety of factors such as the rate of reproduction, the rate of mutation, and the environmental conditions. However, it is likely that the process would take several generations, and it is estimated that it could take anywhere from 10 to 20 years for the majority of the population to end up with light fur.
Answer:
In earlier examples, 1 percent of the population started with dark fur and had a 1 percent survival advantage, and that took 1,000 years to turn 95 percent of the population dark. So, if 1 percent of the population had light fur, and that had a 50 percent survival advantage, it would take only 20 years for 95 percent of the population to be light.
Explanation:
There are two properties of phospholipids that affect how tightly they pack together: the length of the hydrocarbon chain and the number of double bonds. The degree of packing, in turn, influences the relative mobility of these molecules in the membrane. Which of the following would yield the most highly mobile phospholipid (listed as number of carbons and number of double bonds, respectively)?
(a) 24 carbons with 1 double bond
(b) 15 carbons with 2 double bonds
(c) 20 carbons with 2 double bonds
(d) 16 carbons with no double bonds
Answer:
Explanation:It’s d
the structure of unsold mart consists of people with similar specialties put together in formal groups, such as the marketing, accounting, and human resource departments. unsold mart has a____structure. multiple choice hollow functional simple focused
The structure of unsold mart consists of people with similar specialties put together in formal groups, such as the marketing, accounting, and human resource departments. Unsold mart has functional structure.
Unsold Mart has a functional structure. This type of organizational structure groups people with similar specialties together in formal departments, such as marketing, accounting, and human resource departments. This enables each department to focus on their specific area of expertise and helps the organization to maintain efficiency and achieve its objectives.
A functional structure is particularly suitable for organizations that require a high level of specialization in their operations. It simplifies the decision-making process, as each department head is responsible for decisions related to their area of expertise.
Unsold Mart's organization consists of formal groups with people of similar specialties, which aligns with the characteristics of a functional structure. This structure allows the organization to efficiently allocate resources, develop specialized skills, and streamline decision-making processes, while also emphasizing the importance of interdepartmental collaboration.
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When an individual exercises vigorously for more than 15 minutes, the muscle cells are unable to obtain oxygen from the blood quickly enough. As a result, the muscle cells
A.
Answer:
activate anaerobic respiration, producing lactic acid build-up.
A DNA synthesizer is a machine that uses automated chemical synthesis to generate short, single strands of DNA of any given sequence. You have used the machine to synthesize the following three DNA molecules: DNA1: 5: CTACTACGGATCGGG 3: DNA2: 5: CCAGTCCCGATCCGT 3 DNA3: 5’AGTAGCCAGTGGGGAAAAACCCCACTGG 3 Now you add the DNA molecules either singly or in combination to reaction tubes containing DNA polymerase, dATP, dCTP, dGTP, and dTTP in a buffered solution that allows DNA polymerase to function. For each of the reaction tubes, indicate whether DNA polymerase will synthesize any new DNA molecules, and if so, write the sequence(s) of any such DNAs. (3 points each) a. DNA1 plus DNA3 b. DNA2 plus DNA3 c. DNA1 plus DNA2 d. DNA3 only
If DNA1 is added to the reaction tube, DNA polymerase will synthesize a complementary strand to DNA1, following the base-pairing rules of A-T and C-G. The resulting strand will be: 5' TGTAGTGCATGCCC 3'
If DNA2 is added to the reaction tube, DNA polymerase will synthesize a complementary strand to DNA2, following the base-pairing rules of A-T and C-G. The resulting strand will be: 5' GGTACAGGCATAGC 3'
If DNA3 is added to the reaction tube, DNA polymerase will synthesize a complementary strand to DNA3, following the base-pairing rules of A-T and C-G. The resulting strand will be: 5' TCTAGGCCAGGCGGTTTTTGGGGAACCCC 3'
What is DNA polymerase?DNA polymerase synthesizes new DNA molecules by adding nucleotides to a growing chain using the existing DNA strand as a template. If a single strand of DNA is present, DNA polymerase will add nucleotides to the 3’ end, extending the strand in the 5’ to 3’ direction.
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11
marium
12
Na Mg
24305
Calcium
20
scandum
21
19
K
Ca
Sc
44956
39 052
rubidium
27 6
Part 1 Name two elements that have the same properties as sodium
Answer:
Lithium,Potassium
.....
Above are two images of landforms on Earth. Select one of the images above that you think is evidence that can support an answer to the question: What geologic process could have formed the channel on Mars? What do you think the answer to this question is, and how does the image you selected support that answer to this question?
I would select the image of the Grand Canyon as evidence that can support an answer to the question of what geologic process could have formed the channel on Mars. The Grand Canyon is a vast canyon carved by the Colorado River over millions of years.
What is geologic process?Geologic processes refer to the natural physical and chemical forces that shape and modify the Earth's surface and interior over time.
The channel on Mars is similar to the Grand Canyon in several ways. Both are long, deep, and narrow. Both are carved by water. And both are located in arid regions.
The most likely explanation for the formation of the channel on Mars is that it was carved by water. The water may have come from melting glaciers or from underground aquifers. The water would have flowed downhill, carving the channel as it went.
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Which one would be the correct choice
Over time, the finches that were born with beaks better suited to the available food supply in their habitat survived and reproduced. The correct option is D.
What is natural selection?The process through which populations of living things adapt and change is known as natural selection.
A population's members are naturally varied, which means that they are all distinctive in some ways. This variety indicates that some people have characteristics that are more environment-appropriate than others.
Some of them were better suited to extracting seeds from cactus fruit due to their long, pointed beaks. For eating seeds that were discovered on the ground, shorter, sturdier beaks were preferable.
The finches that were born with beaks that were more suited to the food supply in their habitat over time survived and multiplied.
Thus, the correct option is D.
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Which of the following is the name of a type of chromosomal mutation and a type of gene mutation?
A. Deletion
B. Inversion
C. substitution
Answer:
The name of a type of chromosomal mutation and a type of gene mutation is:
Deletion
which term best describes this plant
Answer:
Please give the context of questions
Explanation:
it really helps people on this site answer these questions. Thanks
How is mutation different from adaptation?
Answer:
It can be a genetic mutation or it can be a change in a strategy. ... In this definition a mutation is any evident change (regardless of its effect on success), and adaptation is a change that made the group thrive in a given circumstance or environment.
Explanation:
Answer:
mutation can be a change in strategy and adaption is a change that made the group thrive in a given circumstance or environment.
Question 5 of 25
Which measurements could create more than one triangle?
A. Sides measuring 3 cm, 8 cm, and 15 cm
B. Sides measuring 10 cm and 20 cm and an included angle
measuring 50°
C. Angles measuring 100°, 10°, and 70°
D. Angles measuring 110°, 40°, and 40°
SUBMIT
The measurements that could create more than one triangle are options C and option D.
Explanation: For a triangle to exist, the sum of any two sides of a triangle must be greater than the length of the third side.
In option C, the angles measuring 100°, 10°, and 70° do not satisfy this condition, as the sum of the angles 10° and 70° is less than 100°, making it impossible to form a triangle. However, by rearranging the angles, such as 10°, 70°, and 100°, we can create a valid triangle.
In option D, the angles measuring 110°, 40°, and 40° also violate the condition for a triangle, as the sum of the angles 40° and 40° is less than 110°. However, by rearranging the angles, such as 40°, 40°, and 110°, we can create a valid triangle.
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Tall pea plants are dominant, while short plants are recessive. In a cross between a purebred tall plant and a purebred short plant, the offspring will all be _______ plants.
Tall pea plants are dominant, while short plants are recessive. In a cross between two plants heterozygous for height, the offspring will be both tall and short in a _______ ratio.
Respond to the following based on your reading.
Explain why it's unknown which of two alleles an offspring will obtain from its biological mother or father for a given characteristic.
Reginald Punnett sought to apply the insights obtained by Mendel to explain the laws of inheritance in a structured fashion. What's a Punnett square and how is it used?
You're conducting a science experiment crossing two different purebred mouse strains, which each contain a different variation of the same gene, for two generations. What do you expect to see as the phenotypes of the first generation? The second generation?
How closely do Mendel's insights into dominant and recessive traits match up with the ratios that Punnett calculated in his Punnett squares?
Assuming complete dominance for all the genes, a) the offspring will all be Tall and heterozygous plants. b) 3:1 ratio. c) Punnett squares are used to combinate the parental gametes and make predictions about the possible genotypes and phenotypes among the progeny. d) First generation 100% heterozygous expressing the dominant phenotype. Second generation: 25% homozygous dominant + 50% heterozygous + 25% homozgous recessive. 75% expressing the dominant phenotype + 25% expressing the recessive phenotype. e) Mendel's insight and Punnett squares match perfectly with the expected ratios.
What are complete dominance and Punnett squares?
Complete dominance is an inheritance pattern that becomes evident in heterozygous individuals. The presence of at least one dominant allele is enougth to hide the expression of the recessive allele. In these cases, the individual expresses the dominant phenotype.
The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.
Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.
Tall pea plants are dominant, while short plants are recessive. In a cross between a purebred tall plant and a purebred short plant, the offspring will all be _TALL_ plants.All these plants will be heterozygous and express the dominant phenotype (Tall).
Tall pea plants are dominant, while short plants are recessive. In a cross between two plants heterozygous for height, the offspring will be both tall and short in a _3:1_ ratio.1/4 = 25% of the progeny are expected to be homozygous dominant
2/4 = 50% of the progeny are expected to be heterozygous
1/4 = 25% of the progeny is expected to be homozygous recessive
25% homozygous dominant + 50% heterozygous = 75% dominant phenotype
Punnett squares discriminate parental gametes and combinates them when the columns and the rows meet. The cells where columns and rows meet (gamete combinations) gives the progeny genotypes. Cross: two different purebred mouse strainsParentals) PP x pp
Gametes) P P p p
Punnett square) P P
p Pp Pp
p Pp Pp
F1) 100% heterozygous expressing the dominant phenotype
Parentals) Pp x Pp
Gametes) P p P p
Punnett square) P p
P PP Pp
p Pp pp
F2) Expected Genotypes
1/4 = 25% PP 2/4 = 50% Pp1/4 = 25% pp
Expected Phenotypes
3/4 = 75% Dominant phenotype (PP + Pp)1/4 = 25% Recessive phenotype (pp)Mendel's insights into dominant and recessive traits match up perfectly with the ratios that calculated using a Punnett square.
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A speaker should use this tactic to reinforce key messages or add drama and anticipation to a presentation.
A.
B.
C.
D.
surveys
polling
distracting animations
purposeful pauses
A speaker should use this tactic to reinforce key messages or add drama and anticipation to a presentation is called as purposeful pauses. So, the correct option is D.
What is Presentation?A presentation is defined as a way of conveying information from a speaker to an audience usually a demonstration, introduction, lecture or speech designed to inform, persuade, inspire, motivate, create goodwill or create a new Idea/product is meant to be presented.
When someone present his/ her presentation, a speaker should use this tactic to reinforce key messages or add drama and anticipation, this type of method is called purposeful pauses.
Therefore, the correct option is D.
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pls help need this for a class
I don't have the story please put it in the comments so I can read it :)
When jaw become large enough to hold the permanent teeth . The milk teeth fall and permanent teeth appear
The "exfoliation" or "shedding" of milk teeth is the name of the procedure.
What is the Dentition of Humans?The primary and permanent tooth sets make up the human dentition. Maxillary (upper) and Mandibular (lower) are the two opposing arches in which teeth are arranged. These can be split into their left and right halves along the midline (mid-sagittal plane).
Four Different Teeth Types and Their Purposes
The majority of individuals have 32 permanent adult teeth, which can be classified into four groups:
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The above graph shows how temperature affects the rate of a reaction that uses the catalase enzyme. What trend is shown by the graph?
A.
Between zero and twenty-seven degrees Celsius, the rate of the reaction increases as the temperature increases.
B.
Between thirty-seven and sixty degrees Celsius, the rate of the reaction increases as the temperature increases.
C.
Between zero and twenty-seven degrees Celsius, the rate of the reaction decreases as the temperature increases.
D.
Between sixty and one hundred degrees Celsius, the rate of the reaction decreases as the temperature increases.
Answer:
the answer is A.
Explanation:
B and C are wrong because they are describing the opposite of what is happening in the graph. D is wrong because there is no change in the reaction rate between 60 degrees and 100 degrees.
The rate of the reaction rises with temperature between zero and twenty-seven degrees Celsius, hence option A is correct.
How does enzyme activity is affected?At various temperatures, catalase functions in different ways. The catalase enzyme becomes more active as the temperature rises from 0°C to about 30°C Up to 100°C, and catalase activity declines as the temperature rises.
The hydrogen bonds between molecules of hydrogen peroxide relax as the temperature rises toward the optimal point, facilitating catalase's reaction with the molecules.
Temperature raising speeds up a process, and lowering temperature slows it down. If the temperature rises over the optimal range, the enzyme denatures and its structure is destroyed.
Therefore, but extremely high temperatures can denature an enzyme, causing it to lose its form and cease functioning. Every enzyme has a preferred pH range, hence option A is correct.
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who is responsible for the reactions of photosynthesis
A) chloroplast B) organelle
Answer:chloroplast
Explanation:that’s what conducts the photosynthetic effect on the living organism
Answer:
A
Explanation:
Chloroplast
Recessive traits would never reappear if
A. zygotes were given opposite
alleles
B. zygotes did not separate during gamete formation
C. alleles did not separate during gamete formation
Recessive traits would never reappear if zygotes were given opposite alleles.
What do you mean by Zygote?Zygote may be defined as the outcome of the fusion of male and female gametes after successful fertilization.
Recessive traits are only expressed when both the copies of recessive genes are inherited from the parents.
Therefore, recessive traits would never reappear if zygotes were given opposite alleles.
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Why is it important that a protein keeps its shape?
The shape of a protein keeps its amino acids from changing sequence.
The shape of a protein keeps it from breaking up into loose amino acids.
The shape of a protein allows it to perform several different jobs.
The shape of a protein allows it to perform its particular job
how does aerobic and anaerobic respiration work together to provide a continuos work together to provide a continuous supply of ATP for cellular respiration?
true or false internal regulations refers to how organisms reproduce themselves?
Answer: False
Explanation: Defines the procedures to be followed for the administrative operation and organization of the institution, the implementation of rules, and the imposition of sanctions on those who violate or do not fully conform to relevant laws.