B2 - Adaptations Flashcards Preview

Biology - Bethany DONE > B2 - Adaptations > Flashcards

Flashcards in B2 - Adaptations Deck (10):
1

What is a habitat?

The natural home or environment of an animal, plant, or other organism.

2

Why do camels have low body fat?

Body fat would insulate camels causing them to overheat.

3

Why do elephants have large ears?

This increases surface area for heat loss from their body.

4

Explain some adaptations of a cactus.

- long roots to reach as much water as possible
- covered in a thick waterproof cuticle to prevent water loss
- water stored in a fleshy stem
- the leaves become spines to reduce water loss
- round shape reduces surface area to prevent water loss

5

What are behavioral adaptations?

Behavioral adaptations are when an animal or plant actively does something to cope with their habitat.

6

What is surface area to volume ratio formula?

Ratio = surface area/volume

7

Does a large surface area to volume ratio mean more or less heat is lost?

More.

8

What is a specialist?

A specialist is an animal that is suited to only one type of habitat.

9

What is a generalist?

A generalist is when an animal can survive in different habitats.

10

Explain a counter current exchange system.

Warm blood descends in an animal towards their feet which has a large surface area to volume ratio therefore more heat is lost. The blood returning to the body is warmed from the blood going down to prevent heat loss.