Chapter 4 Review Flashcards Preview

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Flashcards in Chapter 4 Review Deck (21)
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1
Q

Hat evidence of natural selection is available today that was not available to Darwin?

A

Differences in genes create variation

2
Q

What process often begins with a portion of the population being isolated?

A

Speciation

3
Q

What is the process in which individuals survive and reproduce better than others because they are more adapted?

A

Natural selection

4
Q

A form of hereditary characteristic is called a

A

Trait

5
Q

Insects can adapt to insecticides quickly because

A

Their generation time is short

6
Q

What process would farmers use to produce vegetables that will grow in a specific climate?

A

Selective Breeding

7
Q

Genes make organisms more likely to survive and reproduce. What process can occur?

A

Selection//adaptation

8
Q

If two organisms have similar traits and DNA, they probably

A

Share a common ancestor

9
Q

How did the Galapagos finches differ from the finches on other islands?

A

Different beaks - adapted to their environment

10
Q
Which was not a source of Darwin's ideas about natural selection?
Scientific discoveries about DNA
Selective breeding by farmers
Writing of Mathis and Lyell
Observation of finches
A

Scientific discoveries about DNA

11
Q

A spider will produce hundreds of eggs, only a few survive. This is an example of

A

Overproduction

12
Q

The remains or imprints of a once-living organism found in layers of rock is a

A

Fossil

13
Q

Populations are limited by

A

Starvation, disease, competition, and predation (being killed by predators)

14
Q

What is not an example of natural section?

A

Dog owner breeding their pets to produce better offspring

15
Q

What can fossils reveal about organisms in an environment

A

How they adapted to their environment

16
Q

Wide and strong beak = what food source?

A

Hard, big seeds

17
Q

Male frogs croak to scare predators. Why are the louder ones more likely to survive?

A

They will be able to scare off predators better.

18
Q

Darwin observed variations in individuals. What is the cause?

A

Differences in genes

19
Q

What information about organisms in an environment can the fossil record provide?

A

How organisms in the environment change over time.

20
Q

Darwin concluded that the finches changed. What traits did Darwin base his thoughts on?

A

The beak size and shape of the finches

21
Q

Why are tarantulas that have more hair more likely to produce offspring ?

A

Better to defend themselves//better to attract mates