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Flashcards in Chapter 4 Review Deck (21)
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1

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

Differences in genes create variation

2

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

Speciation

3

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

Natural selection

4

A form of hereditary characteristic is called a

Trait

5

Insects can adapt to insecticides quickly because

Their generation time is short

6

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

Selective Breeding

7

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

Selection//adaptation

8

If two organisms have similar traits and DNA, they probably

Share a common ancestor

9

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

Different beaks - adapted to their environment

10

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

Scientific discoveries about DNA

11

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

Overproduction

12

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

Fossil

13

Populations are limited by

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

14

What is not an example of natural section?

Dog owner breeding their pets to produce better offspring

15

What can fossils reveal about organisms in an environment

How they adapted to their environment

16

Wide and strong beak = what food source?

Hard, big seeds

17

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

They will be able to scare off predators better.

18

Darwin observed variations in individuals. What is the cause?

Differences in genes

19

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

How organisms in the environment change over time.

20

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

The beak size and shape of the finches

21

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

Better to defend themselves//better to attract mates