AP BIOLOGY

EVOLUTION

MODERN THEORY OF EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A biologist is studying an environment that contains many different types of finches. What is one method that the biologist could use to determine how closely the different types of finches are related?
A
Look at the color of their feathers.
B
Look for analogous structures.
C
Study the environment in which each type of finch lives.
D
Compare structural similarities.
Explanation: 

Detailed explanation-1: -A biologist is studying an environment that contains many different types of finches. What is one method that the biologist could use to determine how closely the different types of finches are related? An analysis of DNA and RNA sequences can be used to classify organisms.

Detailed explanation-2: -Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.

Detailed explanation-3: -Erupting volcanoes cause sudden, drastic change in an area, forcing organisms to evolve rapidly to adapt to the new environment. Change in an organism’s environment forces the organism to adapt to fit the new environment, eventually causing it to evolve into a new species.

Detailed explanation-4: -Adaptations are physical or behavioral traits that make an organism better suited to its environment.

Detailed explanation-5: -The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.

There is 1 question to complete.