Homework Answers
According to the graphical illustration, it can be clearly seen that the reproductive success of females is a very high number of offsprings 20-40 as compared to males. Further, the number of individuals having a successful fertile rate in males is high in a very specific range of age, i.e. only 20-30. This clearly suggests that the females do have evolved with a selective breeding feature where they prioritize their mating partner to be of a very specific age group.
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6 6) You observe a species of wasp that has the following distribution of lifetime reproductive s...
Evolution ; You observe two species of snakes that each has bright yellow markings on its...
Evolution ; You observe two species of snakes that each has bright yellow markings on its sides. In one species only the females have the bright coloration. Bright coloration makes snakes more visible to predators. A) Given only this information in which species would you predict that males and females contribute more equally to the costs of reproduction and why? B) For the species that experiences less equal investment in reproduction draw a graph that relates the number of matings...
4. Consider these data obtained from a freshwater fish species. a) According to these data, which...
4. Consider these data obtained from a
freshwater fish species.
a) According to these data, which sex experiences more
limitation to their reproductive success due to availability of
mates? Explain how you are interpreting the graph.
b) Which sex would you expect to be more discriminating
regarding mates (who does the choosing)? Explain.
Females Males 40 # of females # of males 0 1 2 5 0 1 2 5 3 4 # of mates 3 4 # of mates
NTRODUCTION Under nearly all circumstances, postzygotic reproductive isolation cannot evolve under the direct action of natural...
NTRODUCTION
Under nearly all circumstances, postzygotic reproductive
isolation cannot evolve under the direct action of natural
selection. Instead, postzygotic isolation evolves as a by-product
of other genetic changes as proto-species diverge. In contrast,
natural selection can directly act to enhance prezygotic
reproductive isolation. Consider two species with overlapping
ranges. If hybrids between the species are less fit than pure
species individuals, females that mated with heterospecific males
would be at a selective disadvantage, because their resulting
offspring had low fitness....
6) Which of the following is (are) true of natural selection? (1 pts) It requires genetic...
6) Which of the following is (are) true of natural selection? (1 pts) It requires genetic variation It results in descent with modifications It involves differential reproductive success It requires genetic variation, results in descent with modifications, andinvolves differential reproductive success (pts) 7) Cotton topped tamarins are small primates with tufts of long white hair on their heads. While studying these creatures, you notice that males with longer hair get more opportunities to mate and father more offspring. To test...
Please show full details steps for better understanding. Thank you. 2. A new vaccine has an...
Please show full details steps for better understanding. Thank
you.
2. A new vaccine has an 70% success rate for males and 40% success rate for females. Assume that there are about 50% females and males in the population. (a) [10 points] A randomly selected person from our class is given the vaccine, and the vaccine turned out to be effective. What is the probability that the person was male? (b) [4 points] What is the probability that the person...
17.You are a geneticist studying the population genetics of Monarch butterflies. You are particularly interested in...
17.You are a geneticist studying the population genetics of Monarch butterflies. You are particularly interested in one gene for which the species has two alleles: B and b. Upon examining the alleles present in 100 individuals, you find that the B allele is very common, with an allele frequency of .6. Therefore, you calculate that there are a total of _______ b alleles present in the population. Group of answer choices A) 60 B) 80 C) 100 D) 120 E)...
Please post complete answer . please only post answers if you know all . Imagine that...
Please post complete answer . please only post answers if you
know all .
Imagine that two closely related species of frog live in the same general area and the males of one species exhibit parental care but males of the species do not. Which of the following attributes would you expect are associated with the non-paternal care species? Explain your choices). (8 marks) A. The tadpoles grow extremely rapidly. B. The adults are relatively small. The tadpoles and adults...
You have a cup of beans in front of you with 20 white beans and 24...
You have a cup of beans in front of you with 20 white beans and 24 red beans. These beans represent the alleles for a simple Mendelian trait, where red is dominant (R) and white is recessive (r). In 1997, a self-isolated group of people living on a small island was joined by a group of explorers from a nearby island. STEP 1. Create the original, self-isolated population. The self-isolated population consists of six males. Three of them are homozygous...
When comparing the spectra for the starting material and the product - where do you observe...
When comparing the spectra for the starting material and the product - where do you observe the biggest change(s)? 2-hydroxy-3-methoxybenzaldehyde 13C-NMR (400 MHz, Chloroforat)- - 196.60 - 151.66 - 148.31 124.54 120.79 119.56 117.95 77.34 CDC13 77.02 CDC13 76.71 CDC3 77.23 -4000 DE'95 — - 3500 3000 2500 2000 1500 1000 500 210 200 190 180 170160 150 140 130 120 110 100 90 fi (ppm) 80 70 60 50 40 30 20 10 0 -10 -o zoo OH O...
Male and female populations of tortoises under 80 years old are represented by age in the...
Male and female populations of tortoises under 80 years old are represented by age in the table below. Complete parts (a) through (d). (a) Approximate the population mean and standard deviation of age for males (Round to two decimal places as needed.) Males Females 8 Age 0-9 10-19 20-29 30-39 10 16 9 (Round to two decimal places as needed.) (6) Approximate the population mean and standard deviation of age for females. 16 17 16 21 19 20 25 HE...
4. Consider these data obtained from a
freshwater fish species.
a) According to these data, which sex experiences more
limitation to their reproductive success due to availability of
mates? Explain how you are interpreting the graph.
b) Which sex would you expect to be more discriminating
regarding mates (who does the choosing)? Explain.
Females Males 40 # of females # of males 0 1 2 5 0 1 2 5 3 4 # of mates 3 4 # of mates
NTRODUCTION
Under nearly all circumstances, postzygotic reproductive
isolation cannot evolve under the direct action of natural
selection. Instead, postzygotic isolation evolves as a by-product
of other genetic changes as proto-species diverge. In contrast,
natural selection can directly act to enhance prezygotic
reproductive isolation. Consider two species with overlapping
ranges. If hybrids between the species are less fit than pure
species individuals, females that mated with heterospecific males
would be at a selective disadvantage, because their resulting
offspring had low fitness....
6) Which of the following is (are) true of natural selection? (1 pts) It requires genetic variation It results in descent with modifications It involves differential reproductive success It requires genetic variation, results in descent with modifications, andinvolves differential reproductive success (pts) 7) Cotton topped tamarins are small primates with tufts of long white hair on their heads. While studying these creatures, you notice that males with longer hair get more opportunities to mate and father more offspring. To test...
Please show full details steps for better understanding. Thank
you.
2. A new vaccine has an 70% success rate for males and 40% success rate for females. Assume that there are about 50% females and males in the population. (a) [10 points] A randomly selected person from our class is given the vaccine, and the vaccine turned out to be effective. What is the probability that the person was male? (b) [4 points] What is the probability that the person...
Please post complete answer . please only post answers if you
know all .
Imagine that two closely related species of frog live in the same general area and the males of one species exhibit parental care but males of the species do not. Which of the following attributes would you expect are associated with the non-paternal care species? Explain your choices). (8 marks) A. The tadpoles grow extremely rapidly. B. The adults are relatively small. The tadpoles and adults...
When comparing the spectra for the starting material and the product - where do you observe the biggest change(s)? 2-hydroxy-3-methoxybenzaldehyde 13C-NMR (400 MHz, Chloroforat)- - 196.60 - 151.66 - 148.31 124.54 120.79 119.56 117.95 77.34 CDC13 77.02 CDC13 76.71 CDC3 77.23 -4000 DE'95 — - 3500 3000 2500 2000 1500 1000 500 210 200 190 180 170160 150 140 130 120 110 100 90 fi (ppm) 80 70 60 50 40 30 20 10 0 -10 -o zoo OH O...
Male and female populations of tortoises under 80 years old are represented by age in the table below. Complete parts (a) through (d). (a) Approximate the population mean and standard deviation of age for males (Round to two decimal places as needed.) Males Females 8 Age 0-9 10-19 20-29 30-39 10 16 9 (Round to two decimal places as needed.) (6) Approximate the population mean and standard deviation of age for females. 16 17 16 21 19 20 25 HE...
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