HMH 4.3 Explore 2-3 - Natural Selection

Question 1

Darwin was the first scientist to propose the "theory of evolution".

Accepted Answer

False

Question 2

What type of beak would you expect to see on a finch that eats large seeds, like Tribulus sps.?

Accepted Answer

A very large, thick beak

Question 3

Which type of natural process could account for fossils of marine organisms being found on top of mountain ranges?

Accepted Answer

Geologic uplift.

Question 4

In your text, mice were bred to exercise more. The graph shows that _______.

Accepted Answer

mice can be bred to exercise more, because the blue line goes higher.

Question 5

Individuals can adapt to their environment.

Accepted Answer

False

Question 6

In nature the differences in a population are known as _____________.

Accepted Answer

variations

Question 7

For artificial selection to occur, the trait must be _____________________.

Accepted Answer

heritable

Question 8

What can you infer about how the finch population changed after the drought?

Accepted Answer

Large-beaked finches were better able to crack large, tough seeds.

Question 9

Malthus described how resources limit the growth of ____________ populations.

Accepted Answer

human

Question 10

Which ONE of these statements are BEST supported by the Glyptodon fossil?

Accepted Answer

Glyptodon has similar features to the modern armadillo.

Question 11

Darwin and Wallace proposed that limited resources could lead to __________.

Accepted Answer

competition

Question 12

Only mutations that occur in sex cells are passed on to offspring.

Accepted Answer

True

Question 13

The saddle-backed tortoise would most likely live in an environment with ____________ plants.

Accepted Answer

tall

Question 14

What type of beak would you expect to see on a finch that eats small seeds?

Accepted Answer

A small-sized, thick beak

Question 15

The domed tortoise would most likely live in an environment with ____________ plants.

Accepted Answer

short

Question 16

Sexual reproduction _____________ genetic variation.

Accepted Answer

increases

Question 17

Natural selection leads to changes in populations, not in individual organisms.

Accepted Answer

True

Question 18

What type of beak would you expect to see on a finch that eats insects?

Accepted Answer

A long & thin, pointed beak

Question 19

Genetic variation is the basis for natural selection.

Accepted Answer

True

Question 20

New alleles are not made by natural selection - they occur by genetic mutations.

Accepted Answer

True

Questions 20