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14
COMMUNITIES AND FOOD CHAINS
Living together
Many plants and animals share the same living area even though this can also mean danger.
A nice, sunny rock close to a stream may be shared by many living things. For example, some small plants may grow on it, or it
may be a resting place for dragonflies. But it is also a good place for lizards and other reptiles to sun themselves and warm up (picture ).
When you look around, you find many different kinds of living things. Each different kind of living thing is called a species. Species are groups that breed together. Each species that you see in an area is using that place as part of its home.
How many things can live
together?
Every living thing has to have a home
where it can find food. In the case of plants, this means that there has to be enough nourishment in the soil, sunlight and water for their needs. Some plants need a lot of food and water, while others can live in areas with poor soils.
Animals have to find somewhere with enough plants, or other animals, to eat. Some animals will eat many different types of plants or animals, others eat only one
  These terrapins are fish eaters, so they live by lakes and rivers, but because they are cold-blooded, they also have to find sunny places to warm up.