Biological Science
5th Edition
ISBN: 9780321743671
Author: Scott Freeman
Publisher: PEARSON
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Chapter 25, Problem 1TYK
How can biological fitness be estimated?
a. Document how long different individuals in a population survive.
b. Count the number of healthy, fertile offspring produced by different individuals in a population.
c. Determine which individuals are strongest.
d. Determine which
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Which statement illustrates the connection between natural selection and overreproduction of a population?
a) populations vary in their inherited traits.
b) species produce more offspring than can survive in the environment.
c) individuals with inherited traits that promote survival tend to have more surviving offspring.
d) individuals with traits that do not enhance survival cannot reproduce.
Use the diagram below to answer the question.
In the population of insects shown, insects with spots have the genotype Aa or AA and bugs with no spots have the genotype aa. Which argument best supports the phenomenon shown in the diagram?
There was an increase in the fitness of the gene
There was an increase in the fitness of the gene
There was an increase in the mutation rate of gene
There was an increase in the mutation rate of gene
Which reproductive combination produces hybrids? a. when individuals of the same species in different geographical areas reproduce b. when any two individuals sharing the same habitat reproduce c. when members of closely related species reproduce d. when offspring of the same parents reproduce
Chapter 25 Solutions
Biological Science
Ch. 25 - True or false? Some trails are considered...Ch. 25 - CAUTION Why does the presence of extinct forms and...Ch. 25 - 3. Trails that are derived from a common ancestor,...Ch. 25 - How can biological fitness be estimated? a....Ch. 25 - 5. CAUTION According to data presented in this...Ch. 25 - Some biologists summarize evolution by natural...Ch. 25 - Prob. 9TYUCh. 25 - 9. The average height of humans in industrialized...Ch. 25 - Prob. 16TYPSSCh. 25 - Prob. 3TYK
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Explain what genetic variation is and how is it beneficial to a population facing an environmental challenge. Engage in argument from evidence whether small or large body size is more fit for survival in the fish populations. Predict what is likely to happen to body size for fish harvested by nets if the holes in the nets were to become smallerarrow_forwardIn a few short sentences, explain what Descent with Modification means. (Use your own words).arrow_forwardPredict gene frequencies in populations when one allele is favored over another. Predict effect of continuous inbreeding in a population in a population after several generations.arrow_forward
- evaluate the benefits and dilemmas in the use of human twin studies to investigate the causes of variation.arrow_forwardWhich situation would most likely lead to allopatric speciation? a. A flood causes the formation of a new lake. b. A storm causes several large trees to fall down. c. A mutation causes a new trait to develop. d. An injury causes an organism to seek out a new food source.arrow_forwardPopulation genetics is the study of ________. a. how allele frequencies in a population change over time b. populations of cells in an individual c. the rate of population growth d. how genes affect embryological developmentarrow_forward
- Give typed explanation not written How can we measure gene flow between discrete populations? a. By estimating the proportion of individuals in the populations that are immigrants. b. By estimating the migration variance (σm2). c. By counting the number of offspring each individual has. d. By counting the number of connected populations.arrow_forwardWhich is the best description of evolution? A. Animals become more complex over time. B. Plants become more complex over time. C. Life changes over time. D. Allele frequencies change in a population.arrow_forwardGive typing answer with explanation and conclusion Which of the following statements is false? Question 5 options: A) When insect populations are attacked with pesticides, the populations increase their mutation rates so that they can develop pesticide-resistant alleles. B) Small populations have smaller gene pools than larger populations. C) The fittest members of a population leave more offspring than less-fit individuals. D) Natural selection is responsible for most adaptive changes in populationsarrow_forward
- Evaluate the effect of crossing over on the genetic composition of an organism AND explain the effect crossing over on genetic diversity in a population.arrow_forwardPlant- and animal breeders use the information of (a tool) to increases the chances of having the desired traits in offspring.arrow_forwardHypothesize why a dry and unpredictable habitat favors r-selected species. Support your hypothesis with at least two arguments.arrow_forward
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