Carnivores, Herbivores, Omnivores, and Decomposers

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Presentation transcript:

Carnivores, Herbivores, Omnivores, and Decomposers

Carnivores A carnivore is an animal that gets food from killing and eating other animals. Carnivores generally eat herbivores, but can eat omnivores, and occasionally other carnivores. Animals that eat other animals, like carnivores and omnivores are important to any ecosystem, because they keep other species from getting overpopulated. Since carnivores have to hunt down and kill other animals they require a large amount of calories. This means that they have to eat many other animals over the course of the year. The bigger the carnivore, the more it has to eat. You should make sure that you have many more herbivores and omnivores than carnivores.

Herbivore A herbivore is an animal that gets its energy from eating plants, and only plants. Omnivores can also eat parts of plants, but generally only the fruits and vegetables produced by fruit-bearing plants. Many herbivores have special digestive systems that let them digest all kinds of plants, including grasses. Herbivores need a lot of energy to stay alive. Many of them, like cows and sheep, eat all day long. There should be a lot of plants in your ecosystem to support your herbivores. If you put carnivores or some omnivores in your ecosystem, they'll eat your herbivores, so make sure you have enough herbivores to support them.

Omnivore An omnivore is a kind of animal that eats either other animals or plants. Some omnivores will hunt and eat their food, like carnivores, eating herbivores and other omnivores. Some others are scavengers and will eat dead matter. Many will eat eggs from other animals. Omnivores eat plants, but not all kinds of plants. Unlike herbivores, omnivores can't digest some of the substances in grains or other plants that do not produce fruit. They can eat fruits and vegetables, though. Some of the insect omnivores in this simulation are pollinators, which are very important to the life cycle of some kinds of plants.

Decomposer Decomposers and scavengers break down dead plants and animals. They also break down the waste (poop) of other organisms. Decomposers are very important for any ecosystem. If they weren't in the ecosystem, the plants would not get essential nutrients, and dead matter and waste would pile up. There are two kinds of decomposers, scavengers and decomposers. Scavengers are animals that find dead animals or plants and eat them. While they eat them, they break them into small bits. In this simulation, flies, wasps and cockroaches are scavengers. Earthworms are also scavengers, but they only break down plants. Once a scavenger is done, the decomposers take over, and finish the job. Many kinds of decomposers are microscopic, meaning that they can't be seen without a microscope. Others, like fungi, can be seen.

The zoo is making a new exhibit The zoo is making a new exhibit. The want to feature a heard of deer, some earth worms and a pack of Mexican Gray Wolves. They will put the animals in a cage that is full of grass, trees, and some mushrooms. Do you think the zoo should move ahead with this exhibit design? Explain why or why not. Click on this text. Use the arrow keys to get to the end of these sentences. The text box will increase in size. Use as much space as you need.

Bibliography "What Is a Carnivore?" What Is a Carnivore? N.p., n.d. Web. 02 Dec. 2013. "What Is a Decomposer?" What Is a Decomposer? N.p., n.d. Web. 29 Nov. 2013 "What Is a Herbivore?" What Is a Herbivore? N.p., n.d. Web. 01 Dec. 2013. "What Is an Omnivore?" What Is an Omnivore? N.p., n.d. Web. 30 Nov. 2013.