Biology - Mechanics of Evolution UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
Evolution - Correct answers✔✔The gradual change in a species over time
natural selection - Correct answers✔✔A process in which individuals that have certain inherited
traits tend to survive and reproduce at higher rates than other individuals because of those traits.
Variation - Correct answers✔✔differences in traits of an individual from the group to which it
belongs
selective pressure - Correct answers✔✔environmental conditions that select for certain
characteristics of individuals and select against other characteristics
Traits are often heritable - Correct answers✔✔In living organisms, many characteristics are
inherited, or passed from parent to offspring.
More offspring are produced than can survive - Correct answers✔✔This leads to competition for
limited resources, which results in differential survival
Offspring vary in their heritable traits - Correct answers✔✔The offspring in any generation will
be slightly different from one another in their traits (color, size, shape, etc.), and many of these
features will be heritable.
Adaption - Correct answers✔✔heritable characteristic that increases an organism's ability to
survive and reproduce in an environment
ACTUAL QUESTIONS AND CORRECT
ANSWERS
Evolution - Correct answers✔✔The gradual change in a species over time
natural selection - Correct answers✔✔A process in which individuals that have certain inherited
traits tend to survive and reproduce at higher rates than other individuals because of those traits.
Variation - Correct answers✔✔differences in traits of an individual from the group to which it
belongs
selective pressure - Correct answers✔✔environmental conditions that select for certain
characteristics of individuals and select against other characteristics
Traits are often heritable - Correct answers✔✔In living organisms, many characteristics are
inherited, or passed from parent to offspring.
More offspring are produced than can survive - Correct answers✔✔This leads to competition for
limited resources, which results in differential survival
Offspring vary in their heritable traits - Correct answers✔✔The offspring in any generation will
be slightly different from one another in their traits (color, size, shape, etc.), and many of these
features will be heritable.
Adaption - Correct answers✔✔heritable characteristic that increases an organism's ability to
survive and reproduce in an environment
