Two researchers experimentally formed tetraploid frogs by fertilizing diploid eggs from Rana porosa brevipoda with diploid sperm from Rana nigromaculata. When they mated these tetraploid frogs with each other, most of the offspring that survived to maturity were tetraploid, with chromosome sets of both diploid parent species. Based on these results, if this type of tetraploid formed in the wild, what would be the result? (Reference: Y. Kondo and A . Kashiwagi. 2004. Experimentally induced autotetraploidy and allotetraploidy in two Japanese pond frogs. Journal of Herpetology 38(3)\colon381-92 .) (A) The two parent species would interbreed and fuse into one species. (B) The two parent species would recognize each other as mates. (C) The tetraploids would be reproductively isolated from both parent species. (D) The tetraploids would be selected against.
Answers
Option C (The tetraploids would be reproductively isolated from both parent species) is the correct answer.
What is Species?
A species is the basic unit of classification and taxonomic rank of an organism, as well as a unit of biodiversity, in biology. A species is frequently described as the biggest group of organisms in which any two individuals of the right sexes or mating types can create fertile offspring, most commonly by sexual reproduction. Species can also be defined by their karyotype, DNA sequence, appearance, behavior, or ecological niche. In addition, because fossil reproduction cannot be investigated, paleontologists use the concept of chronospecies.
The Speciation Process. Mechanism Isolation. When a population breaks into two groups and the two populations do not interbreed, reproductive isolation happens. Populations can split into two distinct species when they experience reproductive isolation.
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Related Questions
An atom of a certain element has 18 protons, 18 electrons, and a mass number
of 40. At room temperature this element is a very stable gas. How many
neutrons are in this atom?
Record your answer and fill in the bubbles on your answer document. Be sure
to use the correct place value.
Answers
Answer:
40-18 = 22
Explanation:
The mass number is the sum of the neutrons and protons. You know you have 18 protons and a mass number of 40.
The graph on the left shows how land usage changes in a region as a human population grows. The graph on the right shows biodiversity in the region at the same time.
Which statement is supported by the evidence in the graphs?
A.
As croplands decrease, biodiversity decreases.
B.
As the amount of grassland decreases, biodiversity declines.
C.
An increase in the amount of forest results in declining biodiversity.
D.
An increase in the industrial use of land results in increased biodiversity.
Answers
Answer:
Explanation:B. As the amount of grassland decreases, biodiversity declines.
This statement is supported by the evidence in the graphs. As the human population grows, more land is converted from grassland to cropland, urban areas, and other uses. As the graph on the right shows, biodiversity declines as the amount of grassland decreases. This is likely because grasslands are home to a wide variety of plant and animal species, many of which cannot survive in other types of environments. The loss of grassland habitat can have a significant impact on biodiversity, particularly for species that are specialized to this type of ecosystem.
The statement that is supported by the evidence in the graphs is that as the amount of grassland decreases, biodiversity declines. That is option B, as biodiversity is currently under threat from a range of human activities, such as habitat destruction, climate change, pollution, overfishing, and hunting.
What is biodiversity?Biodiversity refers to the variety of living organisms, including plants, animals, fungi, and microorganisms, found in an ecosystem or on Earth. It encompasses the genetic, species, and ecosystem diversity of the planet and is a measure of the richness and complexity of life on Earth. Biodiversity is important for maintaining the ecological balance of the planet and for supporting the many ecosystem services that benefit human societies, such as air and water purification, soil formation, nutrient cycling, and climate regulation.
Hence, the statement that is supported by the evidence in the graphs is that as the amount of grassland decreases, biodiversity declines. That is option B.
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1 Which description properly describes a step involved in cellular respiration? Glucose is broken apart, then the energy gained is transferred to the energy molecule. Carbon dioxide is combined with oxygen to make glucose. Water is divided into carbon dioxide and glucose. Oxygen is combined with the energy molecule to energize it. Question 2 What is the location within a cell where cellular respiration occurs? The cell membrane The chlorophyll The mitochondrion The cytoplasm Question 3 Which component is missing from the process of cellular respiration? Glucose + Oxygen → Carbon Dioxide + ________ + Energy Water Sugar Oxygen Carbon Question 4 Which of the following is a true statement about cellular respiration? Cellular respiration occurs only in plant cells. Cellular respiration occurs only in animal cells. Cellular respiration occurs in both plant and animal cells. Cellular respiration occurs in some plant cells and some animal cells. Question 5 During the process of cellular respiration, water becomes oxygen. True False Question 6 Which of the following is not evidence for the law of conservation of mass during cellular respiration? The total number of atoms when glucose and oxygen react stays the same when carbon dioxide and water are produced. C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + energy The products from cellular respiration are created from the same elements (carbon, oxygen, and hydrogen) that make up the reactants. Cellular respiration creates an energy molecule when glucose is broken down.
Answers
Glucose is broken down apart, then the energy gained is transferred to the energy molecules is correctly described the step involved in cellular respiration, hence options 1- A, 2- C, 3- A, 4- C, 5- false, 6- D are correct.
The process of cellular respiration involves the oxidation of biological fuels in the presence of an inorganic electron acceptor, such as oxygen, to produce large amounts of adenosine triphosphate, which is an energy containing compound.
The location of the cellular respiration is mitochondria. Cellular respiration occurs in both plant and animal cells.
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FALLING OF STONE
○ FAST CHANGE
○NATURAL DESIRABLE CHANGE
○NATURAL UNDESIRABLE CHANGE
○SLOW CHANGE
Answers
Answer:
answer is fast change due to free fall of object in air.
What nitrogen base pairs with adenine?
A. Guanine
B. Thymine
C. Cytosine
Answers
Answer:
B. Thymine
Explanation:
The thymine pairs with adenine. Thus, option (B) is the correct answer.
1. What element is most important for life and makes up organic
molecules?
O Oxygen
O Nitrogen
O Carbon
O Hydrogen
Answers
Answer:
Carbon
Explanation:
Well in organic chemestry you study the molecules that have carbon as a base
Answer:
FOR SURE Carbon
Explanation: Hope i helped you have a good day:)
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In a single-celled organism, mitosis is used for
Your answer:
A. development.
B. reproduction.
C. growth.
D. repair.
Answers
Answer:
B, Reproduction
Explanation:
........................
Mitosis is the process by which all eukaryotic organisms, such as algae and aquatic plants, reproduce. One cell splits into two cells during the process of mitosis. Thus, option B is correct.
What is the importance of mitosis in Reproduction?Multicellular creatures depend on mitosis to produce new cells for growth and to replace damaged or worn-out cells, such as skin cells.
Mitosis serves as the main asexual reproductive mechanism for many single-celled organisms.
Mitosis is a typical and significant method of asexual reproduction in unicellular (single-celled) organisms.
It also goes by the name of binary fission and is a component of the related process known as multiple fission. When an organism undergoes mitosis, it duplicates itself exactly.
Therefore, In a single-celled organism, mitosis is used for reproduction.
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this virulence factor is common to many members of the enterobacteriaceae and it allows them to inject proteins directly into the host cell: group of answer choices porins. pili. type iii secretion system. fimbriae. a glycocalyx.
Answers
Many species of the enterobacteriaceae share the type iii secretion system, which enables them to inject proteins right into the host cell.
What characteristics make Enterobacteriaceae virulent?The Enterobacteriaceae antigenic structures, the O, H, and K antigens, and the polysaccharide capsules are additional defined bacterial virulence factors. Less research has been done on the virulence factors important for urinary tract infections in Gram-positive pathogens.
What constitutes E. coli's primary virulence factors?We may categorize E. coli pathotypes into four primary virulence classes: colonization, fitness, toxins, and effectors; each is composed of a number of distinct virulence factors with a clear purpose and activity (Table 1). It's important to highlight that several enteric and extraintestinal pathotypes of E.
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rrange the steps in the order in which you proceed through the lesson. Reviewall data tables to ensure you have completed the required areas of the experimentation section.
Answers
The steps to move through the lesson in order are 1, 5,3,2 and 4. The layout is fully described here.
1. Review all content before completing the Evaluation section
5. Read all background content, instructions, and questions.
3. Check that you have gathered all materials required to perform your experiment.
2.Read all procedures in the experiment to ensure you are prepared for your hands-on tasks.
4. Review all data tables to ensure you have completed the required areas of the experimentation section.
This is how the lesson is set up to go forward.Evaluation is the methodical judgement of a subject's validity, worth, and relevance using standards-based criteria.
complete question:
Arrange the steps in the order in which you proceed through the lesson.?
1, Review all content before completing the Evaluation section.
2, Read all procedures in the experiment to ensure you are prepared for your hands-on tasks.
3, Check that you have gathered all materials required to perform your experiment.
4, Review all data tables to ensure you have completed the required areas of the experimentation section.
5, Read all background content, instructions, and questions.
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sickle-cell anemia is a genetic disease caused by the presence of a faulty hemoglobin gene (hbs). the normal version of this gene is hba. which statement about hbs and hba is true? please choose the correct answer from the following choices, and then select the submit answer button. answer choices they're both alleles for the same trait. a person with two hbs genes would be a silent carrier. it is impossible for a person to carry two hbs genes. hemoglobin genes are always inherited from one's mother. people carrying two hbs genes smell like rotten fish.
Answers
Sickle-cell anemia is an inherited disorder that affects the production of hemoglobin, a protein found in red blood cells that carries oxygen throughout the body. The correct answer is: They're both alleles for the same trait."
The faulty gene that causes sickle-cell anemia is called hbs, while the normal version of the gene is hba. Both hbs and hba are alleles, or different versions, of the same gene. However, having two copies of the hbs gene can lead to sickle-cell anemia, while having two copies of the hba gene is normal. It is possible for individuals to carry one copy of each gene, which is called being a carrier, and they are typically healthy but can pass on the hbs gene to their children.
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i need help dragging the RNA nucleotides into the right places
Answers
The RNA nucleotide that can pair with the Thymine (T) at the beginning of the strand is Adenine (A).
In general, the nitrogen-containing bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together. Adenine and guanine are found in RNA and DNA, thymine is only found in DNA and uracil is only found in RNA.
RNA is single-stranded molecule unlike DNA, which is made up of two strands, it can still form complementary base pairs. In RNA, thymine is substituted by uracil. So adenine will bond to uracil instead of thymine when RNA interacts with DNA and when RNA folds with itself to make a 3-dimensional structure.
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A chemical equation is shown below. Which substance below is NOT a product in this equation?
Answers
Answer:
you didnt give us the equation
Explanation:
You probably already know that some traits are purely genetic and others may be environmental. But most human traits reflect an interaction between genetic and environmental factors. Name some traits that might fall into this category and explain why you think they do.
Answers
Answer:Environmental factors often influence traits independently of genes. But not always.
Explanation:Sometimes the environment changes a gene—either its DNA sequence or its activity level.
Please answer quick
Direct observation is the simplest and most effective method to determine population size.
Please select the best answer from the choices provided
ОТrue
OFalse
Answers
this muscle originates on the zygomatic arch and inserts at the angle and ramus of the mandible. it is responsible for closing the jaw.
Answers
Masseter muscle originates on the zygomatic arch and inserts at the angle and ramus of the mandible. it is responsible for closing the jaw.
What is zygomatic?
A pair of bones in the human skull called the zygomatic bone, commonly referred to as the cheekbone, creates the prominence of the cheek. It is situated above the maxilla (upper jaw), the temporal bone, and the orbit, which lies below (side of the skull).
The zygomatic arch, which connects the temporal bone to the maxilla and creates the lateral border of the temporal fossa, is one of the components of the zygomatic bone (a depression on the side of the skull). The zygomatic bone, which supports the cheeks and aids in defining the contour of the face, is a key component of facial anatomy.
The masseter muscle is the one you're referring to. It is one of the primary chewing muscles and lifts the mandible (lower jaw) to allow the mouth to close. The masseter muscle attaches to the angle and ramus (vertical section) of the mandible after originating from the zygomatic arch (cheekbone).
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Help me PLEASE! Choose one answer! First one to answer get Brainliest!
16.)Small, gradual changes in the color or size of a population.
A.) Macroevolution
B.) Embryology
C.) Phylogeny
D.) Microevolution
Answers
Answer:
Microevolution
Explanation:
Micro means small so the word microevolution means small evolution
to determine
(1) The scientist placed a white laboratory rat in the pparatus
how quickly the rat could find its way out.
that the rat was
(2) From his observations, the scientist could _dcoule
able to learn the correct route in the maze.
(3) If you
your time wisely, you will finish your work more quickly.
(4) The sky was filled with
black clouds.
before he melted it.
(5) In the lab the scientist placed gold in a
(6)
in his white lab coat, the scientist resembled a physician.
(7) The scientist determined that the unknown metal possessed
because it could be hammered into a thin sheet.
(8) The unknown metal did not possess
because it could not be
drawn out into a wire.
(9) For centuries, men have searched for an
that would change
lead to gold.
(10) The
possessions we have on Earth will not retain their value
in Heaven.
(11) Our group, which includes people of many different races, is a
one.
(12) After assembling all the
Answer the question
Answers
Why is water essential to all living things?
Answers
Answer: All living things need water to live . All the organisms that depend on air need water to be able to aid in the respiration process .
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The formation of the Hawaiian Islands is one example of a. volcanoes forming over a hot spot. b. volcanoes forming along plate boundaries. c. the Ring of Fire. d. random occurrence of volcanoes. Please select the best answer from the choices provided A B C D
Answers
Answer:
A. volcanoes forming over a hot spot.
Answer:
a
Explanation:
edge 2021
At the end of Chapter 5, Berck and Helfand find compensating variation (CV) and equivalent variation (EV) for wolves in Yellowstone Park - a publicly provided good. Assume wolves are a good to the individual whose preferences we are modeling, i.e., the individual wants more wolves in the wild, all else equal. Suppose there exists 5 wolves in Yellowstone Park, and the average individual has income of \$y. The individual's consumption bundle is A, and the initial indifference curve is I0. Suppose an environmental group provides funds for habitat, and it's expected this habitat will result in 5 more wolves in Yellowstone. Assume the individual's income stays the same. The new consumption bundle is B, and the new indifference curve is I'. Complete the following tasks all on one graph. A. Using our properties of indifference curves (i.e., make them crescent shaped), plot the initial bundle (A) and label with appropriate income and wolf count. Draw the initial indifference curve (I
0
). Be sure to label the graph completely. (Hint: Easiest to place a composite good on the vertical axis, wolf count on the horizontal axis) ( 2 pts) B. Draw the new indifference curve and identify the new consumption bundle (B) while labeling with the appropriate wolf count. ( 2 pts) C. Identify the theoretical consumption bundle (call it C ), that uses the original wolf count but lies on the new indifference curve I'. (2 pts) D. Label the area on the on the vertical axis that corresponds to the EV and CV of these changes. Then in the margins, define CV and EV as it relates to this specific problem
Answers
The initial bundle (A) is represented by the consumption combination (A, I0) with an income of y. Consumer surplus and compensating variation are both concepts in microeconomics that relate to the study of consumer behavior.
The initial indifference curve (I0) is a curved line that slopes upward to the right, indicating that as the individual consumes more of the good, their preference for that good increases, but their preference for the other good remains constant.
The new indifference curve (I') is a curved line that slopes upward to the right, indicating that as the individual consumes more of the good, their preference for that good increases, but their preference for the other good remains constant.
The new indifference curve (I') is plotted on the any type of graph as a curved line starting from the origin, with the vertical axis representing wolf count and the horizontal axis representing income.
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Correct Question:
At the end of Chapter 5, Berck and Helfand find compensating variation (CV) and equivalent variation (EV) for wolves in Yellowstone Park - a publicly provided good. Assume wolves are a good to the individual whose preferences we are modeling, i.e., the individual wants more wolves in the wild, all else equal. Suppose there exists 5 wolves in Yellowstone Park, and the average individual has income of y. The individual's consumption bundle is A, and the initial indifference curve is I0. What is the difference between consumer surplus and compensating variation?
Where was Flannery O'Connor born? a. Milledgeville b. Savannah C. Andalusia d. Lourdes EL CA VE C
Answers
5.Which of these is an example of the body where homeostasis is
maintained?
A. The pH level of urine drops, causing a crystal formation. This leads to blocking of
urine and urine infection
B. The pH level of blood drops due to excess amount of CO2. The brain sends signal to
the diaphragm to increase breathing in order to get rid of excess CO2
C. The excess amount of allergens in the air causes inflammation in the lungs. This
makes breathing difficult
O D. Pelvic floor dysfunction causes stool to dry out. This leads to constipation.
Answers
Answer:
i believe its B.) The pH level of blood drops due to excess amount of CO2. The brain sends signal to
the diaphragm to increase breathing in order to get rid of excess CO2
Explanation:
i hope this helps
im really sorry if its wrong
describe how oxygen and carbon dioxide are cycled using the cardiovascular and respiratory system
Answers
Answer:
respiratory system fills the blood with oxygen and gets rid of the carbon dioxide while the cardiovascular system umps the oxygen rich blood all over the body (short answer)
Explanation:
the respiratory system aids in the supply of oxygen to the blood and the exit of carbon dioxide. when the heart takes in blood that is short of oxygen and full of carbon dioxide, the pulmonary arteries pumps the blood to the lungs, who then fill the low oxygen blood with oxygen and transport the carbon dioxide out of the lungs. this oxygen rich blood, which now has a rich amount of hemoglobin, is transported to the heart which is pumped or circulated it to the entire body. (long answer)
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How many grams of protein did you consume on this day? The only foods recordedon this day should be the eggs, bacon, and whole wheat bread sample breakfast.ChoicesA. 15.30 gB• 22.87 gC. 26.46 gD. 34.90 g
Answers
34.90 grams of protein did you consume on this day. When the foods recordedon this day should be the eggs, bacon, and whole wheat bread sample breakfast. so, the right choice is D.
Six grammes of protein are present in one quarter cup of egg replacements.
Compared to grilled Canadian bacon, which offers 2 grammes of protein per slice, cooked hog bacon has 3 grammes of protein per slice. Turkey bacon cooked to order includes 4.74 grammes of protein per 1-ounce serving.
Regular wheat or white bread has 2 grammes of protein per 1-ounce slice, whereas lighter or thinner crust versions with fewer calories have 1 gramme. A ordinary English muffin and a kaiser roll with a diameter of 3 1/2 inches both include 3 grammes of protein.
A sandwich with bacon and eggs can include a minimum of 13.3 grammes of protein.
Two extra large eggs and three strips of bacon make up a more common sandwich, which has 27 grammes of protein. The sandwich will have an additional 7 grammes of protein per ounce if cheese is added. Adults are advised to consume 0.8 grammes of protein per kilogramme of body weight per day. You can fulfil your protein needs by consuming an average-sized bacon and egg sandwich, but only in moderation. The high levels of fat, sodium, and cholesterol in this sandwich can cause weight gain and raise your risk of developing heart disease. Egg whites with 1 ounce of Canadian bacon on whole-wheat toast might be a healthier .
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when does your heart take a break and stop beating for a while
Answers
The heart never takes a break or stops beating for a while. The heart is a vital organ that works constantly to pump blood and oxygen to all parts of the body, and any pause in its function can lead to serious health consequences.
When the heart is not able to function properly, it can result in various conditions such as arrhythmia (irregular heartbeat), heart failure, heart attack, or cardiac arrest. These conditions may lead to a temporary or permanent halt in the heart's function, causing it to stop beating completely or pumping blood effectively. This can cause damage to the body's tissues and organs due to a lack of oxygen supply. Hence, it is important to take care of the heart's health through a balanced diet, regular exercise, and avoiding habits that can damage the heart, such as smoking and excessive alcohol consumption.
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Categorize muscles according to whether they facilitate inhalation or exhalation during quiet and forced ventilation. Museles that do not assist in ventilation should not be classified. Inhalation Exhalation diaphragm external oblique scalenes internal intercostals external intercostals biceps
Answers
During quiet ventilation, the diaphragm and external intercostal muscles facilitate inhalation, while the internal intercostal muscles and external oblique muscles facilitate exhalation. The scalene muscles may assist in inhalation during deep breathing.
Inhalation Muscles:
1. Diaphragm: This is the primary muscle responsible for quiet inhalation. During forced inhalation, it contracts more forcefully to increase lung volume.
2. External Intercostals: These muscles assist in quiet and forced inhalation by elevating the ribs and expanding the chest cavity.
3. Scalenes: These muscles help in forced inhalation by elevating the first two ribs and expanding the chest cavity further.
Exhalation Muscles:
1. Internal Intercostals: These muscles are primarily involved in forced exhalation. They depress the ribs and decrease the volume of the chest cavity.
2. External Oblique: This muscle assists in forced exhalation by compressing the abdomen and pushing the diaphragm upwards, reducing lung volume.
The biceps muscle is not involved in the process of ventilation, so it is not classified in either category.
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ANSWER QUICKK PLEASEE
Answers
Two sustainable farming techniques that promote soil health and reduce greenhouse gas emissions are:
crop rotationconservation tillageWhat is crop rotation and conservation tillage?Crop rotation involves planting different crops in the same field in a specific sequence, which helps to prevent soil nutrient depletion and pest infestations, leading to healthier soil.
Conservation tillage involves reducing the amount of tillage or plowing of the soil, which helps to maintain soil structure and prevent soil erosion, thereby reducing greenhouse gas emissions associated with soil disturbance.
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Fill in the boxes below to identify variables, controls and constants.
Answers
Answer:
Independent Variable- Hours spent watching television or yt.
Dependent Variable- Grades in school
Control Group- Students who don't watch any television or yt.
Constant- The students
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how is the ability of vibrio cholerae to sense ph related to its ability to cause an intestinal infection? (explain in words or diagrammatically).
Answers
Vibrio cholerae, the bacterium responsible for cholera, has a specific sensor that can detect changes in pH. The ability of Vibrio cholerae to sense pH is related to its ability to cause an intestinal infection.
Vibrio cholerae has the ability to survive the acidity of the stomach and colonize the small intestine. The pH of the small intestine is mildly acidic. Vibrio cholerae senses the change in pH of the small intestine and produces two proteins: ToxT and TcpP/TcpH. These proteins, in turn, activate the expression of virulence genes.
Vibrio cholerae has evolved a two-component regulatory system called ToxR/ToxS. The ToxR/ToxS system works by sensing the changes in pH between the stomach and the small intestine. When Vibrio cholera enters the small intestine, ToxR/ToxS is activated, leading to the activation of a set of genes that encode factors responsible for causing an intestinal infection.A part of the ToxR/ToxS regulatory system of Vibrio cholerae involves two other proteins, TcpP and TcpH.
These proteins help in the transmission of signals between the cell surface and the cytoplasm, allowing the bacterium to respond to the changing environment and express virulence genes.TcpP/TcpH and ToxT are transcriptional regulators that activate the virulence genes that encode the cholera toxin. The cholera toxin is responsible for the hallmark symptoms of cholera, such as severe diarrhea and vomiting.
In conclusion, Vibrio cholerae senses pH changes in the small intestine using its ToxR/ToxS two-component regulatory system, which activates the expression of virulence genes. TcpP/TcpH and ToxT proteins are transcriptional regulators that activate the expression of virulence genes encoding the cholera toxin.
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If the initial population is 100, and the growth rate is 0.3, what will the population be at t
= 9?
Answers
Answer:
≈ 1060.45
Explanation:
You would use the exponential growth formula:
\(y=a\left(1+r\right)^{x}\)
\(y=100\left(1+0.3\right)^{9}\)
\(a =\) initial value
\(r =\) growth rate
\(x =\) time interval