Science HMH Unit 3 Review

Living and nonliving things that interact in the same space

• ecosystem
• symbiosis
• habitat
• niche

When birds fight for their food source, this is an example of _________.

• conservation (conserve)
• competition (compete)
• recycling (recycle)
• environmental damage

What are the FOUR things that a plant NEEDS to perform photosynthesis? (select 4)

• water
• carbon dioxide
• sunlight
• chlorophyll
• sugar

True or false: A plant needs lots of oxygen and releases carbon dioxide as a waste gas.

• True
• False

What are the TWO things that a plant CREATES during photosynthesis? (select 2)

• sugar
• oxygen
• water
• carbon dioxide
• sunlight

What is the original source for nearly all organisms energy?

• water
• trees
• sun
• animals

Plants are producers that use the _______ energy to make _______, which they use as food.

• sugars, consumer
• sun's, sugars
• sun's, producers
• producers, consumers

What is the role of this organism in the food chain?

• It eats other organisms.
• It use's the sun's energy to produce its own food.
• It breaks down wastes and dead organisms.

For which of the following do animals use the energy in food? (select all that apply)

• growth
• repair
• motion
• photosynthesis

Which of these would be considered a PREDATOR?

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