Energy Flow

The main source of energy for all of earth's food chains is the...

• sun

• water

• nutrients

• producers

Plants produce their own food through...

• symbiosis

• photosynthesis

• genetics

• magic

All food chains begin with a...

• grass

• producer

• consumer

• decomposer

A herbivore is also known as...

• primary consumer

• secondary consumer

• tertiary consumer

The secondary consumer is a carnivore which means...

• a consumer that eats both plants and other animals

• a consumer that eats only plants

• a consumer that eats only other animals

The third consumer in the food chain is called...

• primary consumer

• secondary consumer

• tertiary consumer

Examples of decomposers are...

• plants

• animals

• bacteria and fungi

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.

• There would be a decrease in the grass/flowers population.

• There would be a decrease in the mice population.

• There would be an increase in the grass/flowers population.

Grass is considered a ...

• consumer
• producer
• decomposer
• composers

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.