13. Which of the following describes a canopy of the rainforests
A. composed of trees that are 130 to 180 feet tall
B. about 59 feet and consists of trunk of canopy, shrubs, small plants and trees
C. consists mostly of fungi, insects, worms and litter from taller trees
D. has slender trees from a dense platform of vegetation with 60 to 129 feet.
14. What kind of interaction is shown when one organism kills another organism for food?
A. mutualism
B. commensalism
C. parasitism
D. predation
15. It is an environment where both living and non-living things exist and interact with one
nother.
A. ecology
B. ecosystem
C. community
D. population
16. One example of competition in tropical rainforest is when the shrubs and trees are
owing together in one area. What do they compete for?
A. sunlight and soil nutrients.
B. oxygen and carbon dioxide.
C. chemicals and oxygen.
D. water and chemicals.
17.
results from the interconnected food chains.
A. consumer
B. producer
C. food web
D. biotic component
18. Why is the relationship between the corals and the algae in the coral reefs considered
ualistic?
A. The corals benefit in the interaction and not the algae.
B. The corals receive oxygen from algae, the algae get protection from corals.
C. The corals receive oxygen from algae while the algae are harmed.
D. The corals and algae live together without harming each other.
19. What kind of interaction is shown when animals like crabs and mollusks help break do
Flitter in a mangrove ecosystem through grazing?
A. competition
B. commensalism
C. parasitism
D. mutualism
_20. Why is producer important in an ecosystem?
the source of food to the consumers.
B. It is an organism that eats plants.
C. It breaks down organism into smaller particles.
D. It is a series of feeding relationship.​