A male cardinal's red color is an example of a trait affected by natural selection. The females of the species choose mates based on the vibrant colors of the males' feathers. If females begin using different criteria than feather color when they choose mates, what would most likely happen to the color of the male cardinals over time? O increased variation in the shades of red because there is no advantage in one specific color O increased variation in the shades of red because the cardinals try different ways to impress the females decreased variation in the shades of red over time because no form of the trait is advantageous decreased variation in the shades of red after a single generation

A male cardinal's red color is an example of a trait affected by natural selection. The females of the species choose mates based on the vibrant colors of the males' feathers. If females begin using different criteria than feather color when they choose mates, what would most likely happen to the color of the male cardinals over time? O increased variation in the shades of red because there is no advantage in one specific color O increased variation in the shades of red because the cardinals try different ways to impress the females decreased variation in the shades of red over time because no form of the trait is advantageous decreased variation in the shades of red after a single generation

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Description: A male cardinal's red color is an example of a trait affected by natural selection. The females of the species choosemates based on the vibrant colors of the males' feathers. If females begin using different criteria than feather color whenthey choo

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter12: Processes Of Evolution

Section: Chapter Questions

Problem 2CT

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Elephants have very large heads that necessitate the need for a short, thick neck. Their short, heavily muscled neck prevents them from lowering their head to the ground to graze on grass or drink water from a pond. Elephants have evolved long trunks to reach grass and water. Which kind of selection is responsible for elephants' long trunks? O Stabilizing O Diversifying O Directional
In our lectures, the antagonistic pleiotropy hypothesis is used to explain why evolving to live longer is often beneficial to oneâ s fitness. True False
In a population of lizards, color is genetically determined. The current population has two two phenotypes: blue and yellow. Which of the following scenarios could result in evolution by migration? O A disease indiscriminately reduces the population by 90%. Birds are better able to see and therefor prey on blue lizards The population is joined by individuals from a nearby population that has an allele for a red phenotype. Females preferentially mate with individuals exhibiting the blue phenotype.
Ancient societies used knowledge that traits are heritable in domesticating animals and developing agricultural crops. What might account for the failure to recognize that the same processes operate in humans?
f you had two guinea pigs of opposite sex, both homozygous, one black and one brown, but you didn't know which was the dominant characteristic, how would you find out the dominant color? Select one: a. Mate them and see what color the offspring are-the other will be the dominant color b. Mate them and see what color the offspring are-that will be the dominant color c. The dominant color could not be determined by mating the two, then mating their offspring; further generations would have to be produced to determine the dominant color d. Mate them together, then mate their offspring to see what color the next generation is-the other color will be the dominant color e. Mate them, then mate their offspring to see what color the next generation is-that will be the dominant color
Sometimes gene flow between populations can have negative effects, with one population receiving genes of lower fitness from another population. Which of the following below is a good case example of this observation? O Tibetian highland people interbreeding with lowland people producing children of intermediate hemoglobin proteins OInterbreeding of Texas and Florida Panthers have greater survivorship than inbred Florida Panthers O Male Townshend Warblers out compete male Hermt Warblers and mate with female Hermit Warblers O Wild steelhead interbreeding with captive steelhead produced offspring with lower relative fitness
Sexual selection occurs whena. one sex has a higher fitness than the otherb. a species exhibits sexual dimorphismc. there is a male dominance hierarchy and only the alpha male reproduces. d. There is monogamous mating.e. A trait is favored by one sex such that individuals of the opposite sex possessing that trait have an increased likelihood of reproducing.
Which of the following is NOT an example of sexual selection in the wild? * Peacocks showing off bright feathers to attract the peahens. Newts camouflaging in their environment so predators can't see them. Frogs singing loud songs to attract a mate. Rams butting heads and fighting to gain access to the females. INTL O 4:32 novo N42 Touch 4. %23 24 & backspace 4. 7 8 e r y ab f k enter shift C V alt ctrl alt
What is an adaptation? (select all that apply) A trait that more prevalent in a population as the result of natural selection O A trait that gives an organism a reproductive advantage in its current environment A trait that gives rise to a new species
What behavioral trait(s) prevents interbreeding between different finch species?
An island of the Galápagos archipelago is home to a medium ground finch that subsists mainly by eating seeds. A severe drought struck the island. During the drought, plants produced fewer seeds, and the finches soon depleted the stock of small and soft seeds, leaving only large and hard seeds that were difficult to process. In this environment, finches with deeper beaks were more likely to survive and pass their advantageous traits to their offspring by means of the principle called the 'inheritance of acquired characteristics'. Question 11 options: A) True B) False
there are two alleles per genotype. evolutionary forces are operating on the population. O evolutionary forces are not operating on the population. In a rodent population, the size of individuals determines the size of seeds they eat. Larger seeds contain more nutrition, but only the largest individuals can handle the largest seeds. Larger individuals also require more nutrition. Currently, there is a wide distribution of both rodent and seed sizes. What event would most likely lead to disruptive selection? O Both the very large and the very small seeds become more common, while fewer intermediate-sized seeds become less common. O Both the very large and the very small seeds become less common, while fewer intermediate-sized seeds become more common. All seeds become less common, independent of size. O Larger seeds become more common, while smaller ones become less common. O Smaller seeds become more common, while larger ones become less common.