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Chapter 18: Q. 17 (page 465)

If a person scatters a handful of garden pea plant seeds in one area, how would natural selection work in this situation?

Short Answer

Expert verified

Individuals with the best adaption to their surrounding environment have a better chance of surviving and reproduction, according to Charles Darwin's law of natural selection.

Step by step solution

01

Natural selection :

It is described as a process in which organisms reproduce and survive in diverse ways as a result of phenotypic alterations. It comprises a mild variation of a trait, which is retained if the variance benefits the individuals.

02

Explanation : 

When a person spreads garden pea seeds in a given area, the seeds that can best exploit the available resources and compete with other plants in that area will develop faster and produce more offspring with similar qualities, according to the rule of natural selection. Natural selection will also ensure that characteristics important for superior resource use in garden pea seeds are preserved.

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Most popular questions from this chapter

Which of the following statements is false? a. Punctuated equilibrium is most likely to occur in a small population that experiences a rapid change in its environment. b. Punctuated equilibrium is most likely to occur in a large population that lives in a stable climate. c. Gradual speciation is most likely to occur in species that live in a stable climate. d. Gradual speciation and punctuated equilibrium both result in the evolution of new species.

Which description is an example of a phenotype?

a. A certain duck has a blue beak.

b. A mutation occurred to a flower.

c. Most cheetahs live solitary lives.

d. both a and c

What is the main difference between dispersal and vicariance?

a. One leads to allopatric speciation, whereas the other leads to sympatric speciation.

b. One involves the movement of the organism, and the other involves a change in the environment.

c. One depends on a genetic mutation occurring, and the other does not.

d. One involves closely related organisms, and the other involves only individuals of the same species.

Which situation is not an example of a prezygotic barrier? a. Two species of turtles breed at different times of the year. b. Two species of flowers attract different pollinators. c. Two species of birds display different mating dances. d. Two species of insects produce infertile offspring.

Which variable increases the likelihood of allopatric speciation taking place more quickly? a. lower rate of mutation b. longer distance between divided groups c. increased instances of hybrid formation d. equivalent numbers of individuals in each population
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