Question 1

What is the primary source of energy for most ecosystems on Earth?

Accepted Answer

the Sun

Answer

volcanic activity

Answer

the Moon

Answer

ocean currents

Question 2

Which organisms are known as producers in an ecosystem?

Accepted Answer

plants

Answer

herbivores

Answer

decomposers

Answer

carnivores

Question 3

What process do plants use to convert sunlight into energy?

Accepted Answer

photosynthesis

Answer

fermentation

Answer

digestion

Answer

respiration

Question 4

What term describes the animals that eat plants in an ecosystem?

Accepted Answer

herbivores

Answer

decomposers

Answer

omnivores

Answer

carnivores

Question 5

Which group of organisms helps break down dead material and recycle nutrients back into the soil?

Accepted Answer

decomposers

Answer

producers

Answer

carnivores

Answer

herbivores

Question 6

What is the term for the network of feeding relationships among organisms in an ecosystem?

Accepted Answer

food web

Answer

habitat

Answer

food chain

Answer

energy pyramid

Question 7

Which of the following is a primary consumer?

Accepted Answer

rabbit

Answer

oak tree

Answer

hawk

Answer

mushroom

Question 8

What term describes the flow of energy from one organism to another in an ecosystem?

Accepted Answer

Food chain

Answer

Energy cycle

Answer

Water cycle

Answer

Nutrient cycle

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