B) aquarium
D. ocean
2. Which of the following is not an organism?
A man
C. banana
B. air
D. cockroach
3. Orchids live and grow on tree trunks. This means that a tree trunk is the
orchid.
A, niche
C. ecosystem
B. community D. habitat
4. Which of the following make up a community?
A. a group of people, plants, and animals in a house
B. a herd of horses
C. a plot of soil
D. a school of milkfish
5. Which of the following is an abiotic component of an ecosystem?
A. light
C. tree
B. worm
D. bird
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