| A | B |
|---|
| Habitat | The place where an organism lives |
| Population | A group of organisms of the same species |
| Community | The organisms living in a habitat |
| Predator | An animal which eats other animals |
| Prey | An animal which is eaten |
| Increases | What happens to thenumber of prey when the number of predators decreases |
| Decreases | What happens to the number of predators after they have eaten most of the prey |
| Light | Plants grow tall when they are competing for this |
| Water | Plants grow deep roots when they are competing for this |
| Competition | Happens when two organisms want the same thing and there isn't enough for both of them |
| Mutualism | The name for a relationship where organisms of two species help each other |
| Lichen | An 'organism' which is really algae living in a fungus |
| Anemones | Boxer crabs put these on their claws for extra protection |
| Boxer crab | A species of anemone grows on this animal's claws and shares its food |
| Surface area | The more of it you have, the faster you lose heat |
| Blubber | Polar bears have an 11 cm layer under their skin |
| Camouflage | Polar bears are white for this reason |
| Hump | The camel has one (or two) filled with fat as an energy store |
| Sweating | The camel does this as little as possible to conserve water |
| Faeces | The camel's are so dry you can burn them as soon as they hit the ground |
| Eyelashes | Camels have two rows so that they can keep the sand out of their eyes |
| Nostrils | Camels can close them to keep the sand out |
| Dehydration | When they find water camels can drink up to 135 litres at once to avoid this problem |
| Leathery | The camels lips and tongue are like this so that they can eat thorny bushes when there's nothing else |
| Quadrat | A square you throw randomly to help you sample an area of land |
| Snowshoe hare | A lynx's favourite meal |
| Overheating | A polar bear's biggest problem when it runs |
| Arctic | Where you find polar bears |
| Seal | Polar bears eat them |
| Insulation | The reason polar bears have thick oily coats and blubber |
