Science Review

All the living and nonliving things that interact in an area make up a(n)

• decomposer

• producer

• nutrient

• ecosystem

The main source of energy for all life comes from ____.

• the Earth
• the moon
• the sun
• the food we eat/make

Which gas is removed from the atmosphere during photosynthesis?

• hydrogen
• oxygen
• nitrogen
• carbon dioxide

1. What are organisms that eat both producers and consumers classified as?

• producers

• omnivores

• carnivores

• herbivores

A worm that breaks down a zebra’s body when it dies is considered a …

• consumer

• decomposer

• producer

• scavenger

Which of the following is a producer?

• A fungus because it breaks down dead plant material

• A tree because it uses the sun’s energy to make sugar

• My brother because he makes his own food in the kitchen

• A tree because it’s leaves are green

How is energy transferred throughout the food web?

(Choose the option that best answers the question.)

• Energy is transferred when one organism consumes another.

• Energy is transferred by consumers absorbing energy from the sun.

• Animals such as the lion and jackal get energy by consuming producers.

• Organisms such as the mouse and owl pass energy to the producers.

What do the arrows in the food chain represent?

• the organisms that live in an ecosystem

• the flow of energy from one organism to another

• Only interactions between producers and consumers

• Energy passed from consumer to consumer

Which type of organism only eats meat?

• Detritivore
• Herbivore
• Omnivore
• Carnivore

Which type of organism only eats plants?

• Detritivore
• Omnivore
• Carnivore
• Herbivore