Chapter+4+Review

= PLANTS AND ANIMALS LIVING TOGETHER = __** Vocabulary: **__
 * __producer__ – living things that make their own food
 * __consumer__ – living things that eat food
 * __herbivore__ - a consumer that eats only plants
 * __carnivore__ – a consumer that eats only animals
 * __omnivore__ – a consumer that eats both plants and animals
 * __prey__ – any animals that is hunted by others for food
 * __predator__ - living things that hunt other animals
 * __competition__ – struggle that happens when two or more more living things need the same resource
 * __decomposer__ – a living thing that breaks down waste and things that have died
 * __decay__ – to break down, or rot
 * __germs__ – small living things that include bacteria and viruses, many of which can cause illness
 * __disease__ – the name we give an illness


 * __ Things people need to survive: __**
 * 1) oxygen
 * 2) food
 * 3) water

__** Ways living things interact: **__
 * 1) helping in groups
 * 2) one kind helping another
 * 3) two kinds helping each other

__** Living things compete for: **__
 * 1) sunlight
 * 2) water
 * 3) a mate
 * 4) food
 * 5) oxygen
 * 6) space to live and grow

__** Main Points of the Chapter: **__
 * A food chain shows how energy moves between living things.
 * The heart and blood vessels belong to the circulatory system.
 * A beaver’s dam changes the environment by making more water stay in areas where it is built.
 * If trees are cut down it is a living thing that cut them down. A natural event is when trees are knocked down by a storm. Both of these change the environment because the trees are down when they were once up.
 * Living things compete when they need the same resource.
 * A forest fire may improve the habitat.
 * You can be sure you get all the nutrients you need by eating healthy food.
 * Exercise keeps a person’s heart, lungs, and muscles strong.