evolution

Question 1

an organism that and must get energy by eating other organisms or organic matter

Answer 1

. heterotroph

Question 2

an organism that , usually using sunlight (photosynthesis)

Answer 2

autotroph

Question 3

When a species completely disappears and no longer exists.

Answer 3

Extinction

Question 4

Differences in traits among individuals of the same species.

Answer 4

Variation

Question 5

A change in DNA that can create new traits in organisms.

Answer 5

Mutation

Question 6

An early form of a species from which later species evolved.

Answer 6

Ancestor

Question 7

body parts that are the same or similar in different species

Answer 7

Homologous structures

Question 8

body parts that are useless or left over from a previous ancestor in which they were useful

Answer 8

Vestigial structures