Adaptation is NOT: a. linked to survival b. adjustment to changing environmental conditions c. linked to...
Adaptation is NOT:
a. linked to survival
b. adjustment to changing environmental conditions
c. linked to reproductive success
d. genetically determined
e. increased in frequency by natural selection
Homework Answers
b. Adaption is a mutation , or genetic change ,that helps an organism such as plants or animal to survive.Adaption is not adjustment to changing environmental condition.
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Adaptation is NOT:
a. linked to survival
b. adjustment to changing environmental conditions
c. linked to...
Natural selection afavors phenotypes that increase survival bitsvors phenotypes that increase reproductive output c) is a...
Natural selection afavors phenotypes that increase survival bitsvors phenotypes that increase reproductive output c) is a random process d) leads to perfectly optimal organisms e both and be
Question 5 4 pts Natural selection a.) favors phenotypes that increase survival O b.) favors phenotypes...
Question 5 4 pts Natural selection a.) favors phenotypes that increase survival O b.) favors phenotypes that increase reproductive output O c.) is a random process O d.) leads to perfectly optimal organisms e.) both a and b
6. Which of these conditions will lead to evolution by natural selection? a. Heavy metal pollution...
6. Which of these conditions will lead to evolution by natural selection? a. Heavy metal pollution reduces reproductive success of all phenotypes of green algae in the pond. b. Variation among individuals is not genetic; instead it results from learned behavior or physiological environmental responses. c. Introduction of an exotic predator species results in one native prey phenotype evading predation while other phenotypes get eaten. d. Individuals of the population are clones (genetically identical). 7. Which one is used as...
Fill-in the Blanks with the corresponding terms among the following: differential, fitness, reproduction, survival, variation Once...
Fill-in the Blanks with the corresponding terms among the following: differential, fitness, reproduction, survival, variation Once of the most common ways to define natural selection is the phrase "Blank 1 of the fittest." This description emphasizes the importance of Blank 2 to survival and Blank 3. However, the missing element in this definition is that the Blank 4 success of individuals in a population is based on Blank 5 in their traits. Recall: p2 + 2pq + q2 = 1...
1. Evolution is the change in the genetic makeup of a(n) a individual b. population c....
1. Evolution is the change in the genetic makeup of a(n) a individual b. population c. community d. ecosystem 2. Natural selection results in a. increased genetie variation b. a population that is better adapted to a future environment c. a population that is adapted to its current environment d. an increase in the size of a population 3. Which of the following is not requirement of natural selection? a characteristics of organisms are genetically determined b. more offspring are...
Which of these conditions should completely prevent the occurrence of natural selection in a population over...
Which of these conditions should completely prevent the occurrence of natural selection in a population over time? a. All variation between individuals is due only to environmental factors. b. The environment is changing at a relatively slow rate. c. The population size is large. d. The population lives in a habitat where there are no competing species present.
Climate change is a threat to the existence of many species.
QUESTION 2 Climate change is a threat to the existence of many species. Which of the following limits to natural selection hinders the adaptation of species to the new climate conditions? The developmental plans of plants and animals are too complex. They cannot cope with the warmer temperatures. Mutations happen so frequently that beneficial alleles change before natural selection can substantially increase their frequency Many species not have gene variants in their gene pool that are beneficial in higher temperatures. Climate change happens so...
13. Which of the following is the only evolutionary process that consistently produces adaptation? a. Genetic...
13. Which of the following is the only evolutionary process that consistently produces adaptation? a. Genetic drift b. Natural selection c. Gene flow d. Mutations 14. Which of the following is NOT a possible result when isolated populations come into contact? a. Dispersal b. Stability c. Reinforcement d. Fusion e. New Species 15. What is greater than mutations in producing variation in diploids? a, transformation b. sexual recombination c. natural selection d. punctuated equilibrium e. conjugation 16. Which type of...
a. Explain the statement “When environmental conditions reverse, so does the selection pressure”. b. Describe two...
a. Explain the statement “When environmental conditions reverse, so does the selection pressure”. b. Describe two examples of artificial selection in detail. c. How do the fossils help us study evolution? Give two examples.
Sickle-cell anaemia is an example of how fitness depends on environmental conditions. In places where malaria,...
Sickle-cell anaemia is an example of how fitness depends on environmental conditions. In places where malaria, caused by Plasmodium falciparum is common, HbAHbS heterozygotes have a selective advantage compared to individuals who are homozygotes for the wild type allele. However, HbSHbS homozygotes suffer from sickle-cell anaemia and usually die before producing offspring. The relative fitness (w) of the three genotypes in Nigeria are: HbAHbA 0.78, HbAHbS 1.0 HbSHbS 0.07 a. What is the mathematical relationship between relative fitness and selection...
Natural selection afavors phenotypes that increase survival bitsvors phenotypes that increase reproductive output c) is a random process d) leads to perfectly optimal organisms e both and be
Question 5 4 pts Natural selection a.) favors phenotypes that increase survival O b.) favors phenotypes that increase reproductive output O c.) is a random process O d.) leads to perfectly optimal organisms e.) both a and b
6. Which of these conditions will lead to evolution by natural selection? a. Heavy metal pollution reduces reproductive success of all phenotypes of green algae in the pond. b. Variation among individuals is not genetic; instead it results from learned behavior or physiological environmental responses. c. Introduction of an exotic predator species results in one native prey phenotype evading predation while other phenotypes get eaten. d. Individuals of the population are clones (genetically identical). 7. Which one is used as...
1. Evolution is the change in the genetic makeup of a(n) a individual b. population c. community d. ecosystem 2. Natural selection results in a. increased genetie variation b. a population that is better adapted to a future environment c. a population that is adapted to its current environment d. an increase in the size of a population 3. Which of the following is not requirement of natural selection? a characteristics of organisms are genetically determined b. more offspring are...
13. Which of the following is the only evolutionary process that consistently produces adaptation? a. Genetic drift b. Natural selection c. Gene flow d. Mutations 14. Which of the following is NOT a possible result when isolated populations come into contact? a. Dispersal b. Stability c. Reinforcement d. Fusion e. New Species 15. What is greater than mutations in producing variation in diploids? a, transformation b. sexual recombination c. natural selection d. punctuated equilibrium e. conjugation 16. Which type of...
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