Biology: Science For Life With Physiology Plus Mastering Biology With Pearson Etext -- Access Card Package (6th Edition) (what's New In Biology)
6th Edition
ISBN: 9780134794679
Author: BELK
Publisher: PEARSON
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Chapter 13, Problem 10LTB
Summary Introduction
Introduction:
When the environment creates an outside barrier to reproduction, such as a mountain range or river, it is known as reproductive isolation. Genetic drift (allelic drift) can be defined as the variation in the frequency of an existing allele in a population due to an accidental sampling of organisms.
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The long horns on Texas longhorn cattle are an example of
- natural selectionÂ
- genetic driftÂ
- sexual selectionÂ
- gene flow
- all of the above
Which of these is NOT an assumption made by HWE?
Group of answer choices
Mating is random
No adaptation
Infinitely large population
No natural selection
No mutation
In order for natural selection to occur, organisms must (select all that apply)
have a variation that can be passed from one generation to the next.
have differential reproductive success.
survive longer than another organism.
have adaptations to their environment.
Chapter 13 Solutions
Biology: Science For Life With Physiology Plus Mastering Biology With Pearson Etext -- Access Card Package (6th Edition) (what's New In Biology)
Ch. 13 - Define biological species.Ch. 13 - Prob. 2LTBCh. 13 - Prob. 3LTBCh. 13 - Prob. 4LTBCh. 13 - Prob. 5LTBCh. 13 - Prob. 6LTBCh. 13 - The biological definition of race corresponds to...Ch. 13 - All of the following statements support the...Ch. 13 - Similarity in skin color among different human...Ch. 13 - Prob. 10LTB
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- a statement of how sexual selection differs from natural selection has to be a statement that is wrrtien in a essayarrow_forwardNatural selection acts on individual but only population evolve true or falsearrow_forwardWhich of the below is NOT a component of natural selection? Group of answer choices Differential reproduction generated by human breeding. Variation is heritable. Variation among individuals. Differential reproduction among phenotypes.arrow_forward
- At the edge of the Arctic Circle, owls prey on field mice. Occasionally, in a litter of white field mice, a brown mouse appears. Because of greenhouse warming, the snow melts, changing the environment to shades of brown. What process causes the population to change colors?   artificial selection   natural selection   migration   behavioral isolationarrow_forwardWhat force, which changes gene frequencies, occurs if there is a failure to reproduce or if individuals become isolated from the rest of their population?     mutation     radiation     genetic drift     nonrandom matingarrow_forwardNatural and sexual selection both lead to evolution, but these processes can work against each other. Differentiate between these two forms of selection and give an example of a situation where natural selection reduces mate choice and sexual selection reduces survival.arrow_forward
- Which of the following best states a condition which promotes natural selection of aspecies? Group of answer choices One baby albino alligator, from a nest of 20 eggs, hatches in the Florida Everglades. An ocean ecosystem consists of more algae than fish species. The population of moths in a forest increased from 100 to 150 members. A female cat has a litter of 5 kittens instead of 6.arrow_forwardSome worms eat at night (meaning they are nocturnal) and some worms eat during the day (meaning they are diurnal.) Most birds eat only during the day, so they are only eating diurnal worms, due to the fact that the nocturnal worms are burrowing during this time. Each spring when the worms reproduce about 500 offspring are born but only 100 of them live long enough to reproduce themselves. Explain how natural selection will occur and include the 4 principals of natural selection.arrow_forwardWhich of the following is NOT a component of the Theory of Evolution by Natural Selection?    competition for food and space   variation among species   inheritance of acquired characteristics    survival and reproductionarrow_forward
- Population divergence occurring as a result of females in a species consistently choosing males of a particular color is an example of   ecological speciation   Haldane's Rule   genetic drift   sexual selectionarrow_forwardYou find an isolated, natural pond (call it pond #1) with a population of 400 Danio kerri. Evolution in this isolated population of 400 blue danio could be due to _______. Group of answer choices natural selection (only) genetic drift (only) mutation (only) Natural selection and genetic drift, but not mutation. natural selection, genetic drift and/or mutationarrow_forwardWhich of the following statements is NOT an observation or inference on which natural selection is based? Group of answer choices Only a fraction of an individual’s offspring may survive. Species produce more offspring than the environment can support. There is heritable variation among individuals. Modifications of an organism acquires during its lifetime can be passed to its offspring.arrow_forward
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