Charles Darwin Theory/ Natural Selection

Question 1

Who studied finches on Galapagos Island?

Answer 1

Charles Darwin

Question 2

What year what Charles Darwin born?

Answer 2

1809

Question 3

What did Darwin observe about different species of birds?

Answer 3

That they were uniquely adapted to their environment

Question 4

What are species?

Answer 4

A group of organisms that can mate with one another to produce fertile offspring

Question 5

What is adaptation?

Answer 5

A characteristic that helps an organism survive and reproduce in its environment

Question 6

What are some examples of adaptation?

Answer 6

Sharper teeth to eat meat, lungs to live longer on land, longer neck to reach food

Question 7

What is selective breeding?

Answer 7

Humans breeding animals together to make the offspring have desirable traits

Question 8

What is natural selection?

Answer 8

The process by which organisms with favorable traits survive and reproduce more than organisms without the favorable trait

Question 9

What are the 4 steps of natural selection?

Answer 9

Overproduction (old)
Genetic Variation (garry)
Struggle to survive (suddenly)
Successful reproduction (shrunk)

Question 10

When is it good to be a small specie?

Answer 10

When food is limited or when an animal needs to hide

Question 11

What are changes in the DNA called?

Answer 11

mutations

Question 12

What does mutations cause?

Answer 12

The variations or differences in a population where the genes cause differences in traits

Question 13

What causes some mutations?

Answer 13

Mutagens

Question 14

Can mutation are neutral or harmful?

Answer 14

YES

Question 15

Can the mutations cause an individual in a population to survive better?

Answer 15

YES

Question 16

What are some Mutagens?

Answer 16

Some chemicals, X-rays, Ultraviolet radiation, extreme temperature changes

Question 17

Can some mutations be spontaneous?

Answer 17

YES (which means it just happens without anything happening)

Question 18

What part of the finches did he notice changed due to natural selection? Why did it change?

Answer 18

The beaks were changed. Because they needed to adapt to their environment

Question 19

What happens to the organisms that have traits that are well suited for their environment?

Answer 19

They are able to survive long in their environment, which makes them able to reproduce offspring and grow the population

Question 20

What happens to the organisms that have traits that are not well suited for their environment?

Answer 20

They will survive shorter because they don’t adapt to their environment in their environment, which makes them not able to reproduce offspring and grow the population.

Question 21

If all the trees in an environment with giraffes with food are tall, what will happen to the giraffes with long necks?

Answer 21

They are able to survive because they can reach the food