Ecosystem

What role do sun play in a habitat?

• They produce food energy from sunlight.

• They provide energy for photosynthesis process by plants which provide food for other organism.

• They are prey for predators.

• They recycle nutrients from dead matter.

What is the ultimate source of energy in any food chain?

• the sun

• producers

• consumers

• decomposers

What role do plants play in a habitat?

• They produce food energy from sunlight.

• They break down dead matter.

• They are prey for predators.

• They recycle nutrients from dead matter.

an organism that performs photosynthesis is called a

• consumer

• producer

• decomposer

• heterotroph

Which organisms make their own food?

• Autotrophs

• Heterotrophs

How much energy is transferred from one level on the food chain to the next?

• none of it

• all of it

• about 1%

• about 10%

In an ecosystem which trophic level contains the most energy?

• Tertiary Consumera

• Secondary Consumers

• Primary Consumers

• Producers

A hookworm living in the intestines of a dog and taking nutrients away from the dog, making it sick shows:

• Parasitism

• Organism

• Mutualism

• Commensalism

An animal that eats only plants.

• scavenger

• omnivore

• herbivore

• carnivore

An animal that eats only meat.

• herbivore

• omnivore

• carnivore

• scavenger