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Flashcards in Chapter 13 Deck (19)
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Q

How do fossils prove evolution?

A

The fossils help scientists picture what animals looked like when it was alive.

1
Q

What’s the fossil record?

A

It’s made up of all the fossils ever discovered on earth.

2
Q

What’s mineralization?

A

When an organism dies, it’s body could be buried under mud, sand, or other sediments in a stream or river.

3
Q

What’s carbonization?

A

A fossil forms when a dead animal is compressed over time and pressure.

4
Q

What’s the difference between molds and casts?

A

A mold is a impression of a organism in rock and a cast is a fossil copy of an organism in rock.

5
Q

What’s trace fossil?

A

Preserved evidence of the activity of an organism.

6
Q

What’s original material?

A

The original tissues of an organism can be preserved.

7
Q

What’s the geologic time scale?

A

A chart that divides earth history.

8
Q

What’s a naturalist?

A

A person who studies plants and animals by observing them.

9
Q

Who came up with the theory that animals evolve?

A

Charles Darwin.

10
Q

What’s variation?

A

A slight difference between a trait of organisms that help them survive.

11
Q

What’s natural selection?

A

Process by which populations of organisms with variations live longer, compete better, and reproduce more than those without variations.

12
Q

What’s adaption?

A

A trait that increases an organisms chance of surviving and reproducing in its environment.

13
Q

What’s structural, behavioral & functional adaptions?

A

Structural- color, shape, physical.
Behavioral- the way it acts
Functional- internal body systems.

14
Q

What’s the difference between camouflage and mimicry?

A

Camouflage- an adaption that can make species blend with there environment.
Mimicry- the resemblance of one species to another.

15
Q

What’s comparative anatomy?

A

The study of similarities and differences among structures of species.

16
Q

What’s homologous structures?

A

Body parts of organisms that are similar in structure and position but different in function.

17
Q

What’s analogous structures?

A

Body parts that perform a similar function but differ in structure.

18
Q

What’s vestigial structures?

A

Body parts that have lost there original function through evolution.