Ecosystems

Question 1

What are variations we can’t see ?

Answer 1

Blood type
Curled tongue
Wet/Dry earwax

Question 2

What is the definition of Evolution ?

Answer 2

Scientists believe that species we see on earth today have gradually changed over millions of years.

Question 3

What did Evolution start with ?

Answer 3

Evolution started with unicellular organisms living in water. They evolved into multicellular organisms. Then they evolved into creatures

Question 4

How can we show the changes of an animal to see how it has evolved ?

Answer 4

Evolutionary tree

Question 5

What are the 3 types of evidences for Evolution ?

Answer 5

1) Fossil evidence
2) DNA evidence
3) Observational evidence

Question 6

What is the definition of ‘Natural Selection’ ?

Answer 6

The process of when organisms with characteristics have things that suit their environment/habitat to survive and reproduce passing on their genes

Question 7

Evolution describes the changes in …

Answer 7

Species

Question 8

Evolution happens over …

Answer 8

Millions of years

Question 9

All animals want to make more of themselves. The word for that is …

Answer 9

Reproduce

Question 10

Natural selection selects organisms that are most suited to their …

Answer 10

Enviroment

Question 11

What did Darwin observe about these finches (birds) ?

Answer 11

They had different beaks and head shapes.

Question 12

Definition of Extinction

Answer 12

When all members of a species dies out and theres no more left in the world

Question 13

When a species is not adapted to their Enviroment they become ….

Answer 13

Extinct

Question 14

Name an animal that has become extinct

Answer 14

Dodo, Dinosaur

Question 15

How do we know an animals have become extinct in the past ?

Answer 15

We find fossils

Question 16

Name 3 ways that can make a species extinct.

Answer 16

1) Disease
2) Habitat Change
3) Hunting

Question 17

What does Biodiversity mean ?

Answer 17

Biodiversity is a measure of the variety of species in an area.