7th Science Unit 12 Test Study Guide Flashcards


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1

Who created the theory of evolution?

Charles Darwin

2

What was the name of the ship Charles Darwin sailed on?

HMS Beagle

3

Which Island did Charles Darwin travel to?

Galapagos

4

What does evolution mean?

To change and adapt over time

5

What animals did Charles Darwin study when at the Galapagos Islands?

Finches

6

What is the title of Charles Darwin's famous book?

On the origin of species

7

For Darwin, how have animals and plants survived?

Through natural selection

8

What is survival of the fittest?

It is where the organisms fittest DON'T die out and therefore reproduce and pass on their genes

9

What is natural selection?

Those best suited to demands of environment survive

10

A species is a group of similar organisms that...

can mate with each other and produce offspring

11

A difference between members of the same species are called...

variations

12

How does natural selection lead to evolution?

Helpful variations are passed on and accumulate among the surviving members of the species

13

Which term refers to similar structures that species have inherited from a common ancestor?

homologous structures

14

A trait that helps an organism to survive and reproduce is called a(n)...

adaptation

15

Scientists have inferred that species with similar traits had a common...

ancestor

16

Which of the following best describes a fossil?

The preserved remains or traces of a once-living organism.

17

What did Darwin observe about the finches in the Galapagos island?

Their beaks were adaptions related to the foods the finches ate.

18

Only the organisms with a desired trait or characteristic are bred in...

Artificial Selection

19

Select the 3 factors that Darwin identified that lead to Natural Selection

variation

overproduction

competition

20

Which of the following BEST describes a scientific theory?

A well-substantiated explanation of some aspect of the natural world that is based on a body of evidence.

21

Which of the following defines artificial selection?

The deliberate breeding of plants or animals by humans for desirable traits.

22

Changes in the organisms _____________ can result in the adaptation of organisms through natural selection.

environment

23

Which of the following represents one of the four types of evidence used to support the theory of evolution?

Fossil records

24

TRUE OR FALSE: DNA has been used to show how closely two species are related?

TRUE

25

In nature, how are new species typically formed?

They become isolated from the rest of its species for long periods of time.

26

What best describes gradualism in the context of evolutionary theory?

Gradual accumulation of small changes over extended periods.

27

What defines punctuated equilibrium in evolutionary theory?

Animals stay mostly the same for a long time, then quickly change.

28

What does the term "adaptation" refer to in evolution?

Traits that help organisms survive and reproduce in their environment.

29

What did Charles darwin think about natural selection?

organisms with better traits for their environment will survive and reproduce

30

What is another name for natural selection?

survival of the fittest