B1 Adaptations

HideShow resource information
  • Created by: Sara
  • Created on: 29-12-12 23:37
Preview of B1 Adaptations

First 210 words of the document:

Adaptations
Desert animals are adapted to save water and stay cool
Firstly, they have a large surface area to volume ratio. This allows them to lose more body heat,
which prevents them from overheating.
Most of them have a sandy skin colour which means they can easily camouflage, avoiding predators,
and allowing them to sneak up on prey.
They lose less water by producing small amounts of concentrated urine. Some desert animals like
camels, can produce very little sweat by tolerating big changes in the temperature of their
surroundings.
Most desert animals have thin layers of fat to help them lose as much body heat as possible.
Arctic animals are adapted to reduce heat loss
They have a small surface area to volume ratio. This allows them to conserve heat.
They have fur which helps them stay warm as well as being greasy which allow water to be shed
quickly, reducing them from cooling due to evaporation. Usually, arctic animals' fur is white so that
they can camouflage.
They have a thick layer of insulating blubber which keeps them warm as well as acting as a food
source when food is scarce.

Other pages in this set

Page 2

Preview of page 2

Here's a taster:

Desert plants have adapted to coping with little water
The plants in deserts have a small surface area compared to volume. Plants lose water from leaves,
so having something else such as spines (in cactuses) reduces water loss.
Most desert plants have a water storage system inside them. They basically have tissue which has
the ability to store water.
Desert plants can maximise water absorption by having an extensive root system, or a deep root
system. Some plants actually have both.…read more

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all resources »