Energy and Ecosystems

Vocabulary

100

What is an ecosystem?

A community of organisms and the environment in which they live. 

200

An animal that eats other animals and plants 

consumer

300

A diagram that shows how much food energy is passed to each level in a food chain.

energy pyramid 

400

What is a decomposer?

An organism that breaks down the remains of dead plants to each level of the food chain.

500

What is the name of an animal that eats both plants and animals. 

omnivore

Photosynthesis

100

Give the definition of photosynthesis.

The process by which plants make food, using energy from the sun.

200

What is the main source for producers and why?

The sun because plants need light to make food. 

300

What are the two products of photosynthesis?

oxygen and glucose

400

What are three materials are taken in during photosynthesis?

water, carbon dioxide and sunlight

500

What enables the plant to absorb light energy to produce food?

Chlorophyll 

Food Chains

100

grass---rabbit-- snake-- wolf.  In this food chain what would be the primary consumer?

rabbit

200

grass---rabbit-- snake-- wolf.  In this food chain, what type of animal would the wolf be considered? 

carnivore

300

What does a good chain always end with?

Decomposer 

400

fox-- rabbit--- grass--- worms---snake. Put this food chain in order. 

grass---rabbit---snake---fox---worms

500

How are nutrients returned to the ecosystem through a food web? 

The decomposers break down plants and animals when they die.

Food Webs

100

Look at on page 202 in your book. Name the top predator of the Prairie Food Web. 

snake or hawk 

200

Look at page 203 in your book. Name two herbivores in the food web. 

tadpoles, insects ducks. 

300

What does a food when always start with? 

producers 

400

In the pond food web. What would happen if the third level consumer, the fish, would die out. 

The animals that would eat the fish would either die out or find something else to eat. The animas that the fish eats would increase, which would make the herbivores decrease. 

500

Name the decomposers in the Prairie and Pond Food webs. 

mushrooms, snails, worms, protist

Random

100

What percent of energy is passed to each level in a energy pyramid?

10%

200

Name a producer.

flower, grass ect. 

300

Name a third level consumer. 

any type of canivore

400

An omnivore can consist of what two types of consumers?

first level and second level. 

500

Describe all parts of photosynthesis. 

First the plant takes in_____________. Then in the leaf food is produced.... and then lets out oxygen.