4. Natural Selection - Types of Adaptation

Question 1

What does natural selection lead to?

Answer 1

Organisms becoming better adapted to their environment.

Question 2

What are adaptations?

Answer 2

Features that help organisms to survive in their environment.
They can be;
Behavioural
Physiological
Anatomical

Question 3

What are behavioural adaptations?

Answer 3

These are ways an organism acts that increases its chance of survival.

Question 4

Give 2 examples of behavioural adaptations.

Answer 4

Possums play dead if they’re being threatened by a predator.
Scorpions dance before mating attracting a mate of same species.
Both increase chance of survival and mating.

Question 5

What are physiological adaptations?

Answer 5

These are processes inside an organism’s body that increase chance of survival.

Question 6

Give 2 examples of physiological adaptations?

Answer 6

Brown bears hibernate, they lower rate of metabolism over winter conserving energy so they don’t need to look for food in the month its scarce.
Some bacterial produce antibiotics killing other species of bacteria in area - less competition more likely to survive.

Question 7

What are anatomical adaptations?

Answer 7

These are structural features of an organism body that increase its chance of survival.

Question 8

Give 2 examples of anatomical adaptations?

Answer 8

Otters streamlined shape making it easier to glide through water catching prey and escape predators.
Whales have thick blubber keeping them warm in the cold sea.
Both increases chance of survival.

Question 9

What do we say when organisms are well adapted to their environment?

Answer 9

They have a selective advantage over less-well adapted organisms.