Answer:
Directions: Read the questions carefully. Write the letter of your answer on
a separate sheet of paper.
1. What organisms in a food chain which has the most energy?
A. decomposers B. herbivores
C. omnivores
D. producers
2. Which of these is a consumer-producer relationship?
A. snakes eating frogs
C. hawks eating rabbits
B. birds eating beetles
D. caterpillars eating a leaf
3. Planktons are small autotrophs that absorb energy from the sun. The shrimp eats the
planktons. The tuna eats the shrimp. The shark eats the tuna. Which of these is the
primary
consumer?
A. plankton
B. shark
C. shrimp
D. tuna
4. What type of organism that makes its own energy and begins the food chain?
A. consumer
B. decomposer
C. herbivore
D. producer
5. Which group of organisms in an energy pyramid acquires the most energy?
A. decomposer
C. second-order consumers
B. first -order consumers
D. third-order consumers
6. What diagram that shows the transfer of energy in one line?
A. food chain
B. food line
C. food pyramid
D. food web
7. Which of these is well- constructed food chain?
A. bacteria → owl → mouse → corn
C. . corn → bacteria → mouse→ owl
B. corn → mouse → owl→ bacteria
D. owl→ bacteria→ corn→ mouse
8. Which organisms that cannot make its own energy and eats only plants for their energy?
A. producer
C. secondary consumer
B. primary consumer
D. tertiary consumer
9. Which type of consumer is the frog in a food chain below?
grass →
insects →
frog → bacteria
C. second order consumer
B. first order consumer
D. third order consumer
10. Why are plants considered as producers? They ________________.
A. produce fruits that can be eaten by animal
B. provide vegetable for animals and human consumption
C. produce root crops that supply carbohydrates to animal
D. convert energy from the Sun into chemical energy in the form of glucose (food)
11. What is a food chain? It is _________________________.
A. composed of biotic and abiotic factors in an area
B. overlapping food chains in an ecosystem
C. a series of events in which organism eats another and obtains energy
D. the amount of energy that moves from one feeding level to another in a food web
12. Which type of consumer obtains all its energy by eating only producers?
A. carnivoreB. herbivore
C. omnivore
D. scavenger
13. Which is NOT an abiotic factor?
A. air
B. bacteria
C. soil
D. water
14. What most likely happen first if you remove a primary consumer from the ecosystem?
A. Primary consumers would increase.
B. The number of plants would increase.
C. Secondary consumers would increase.
D. There would be more food for secondary consumers.
15. Which would be an abiotic limiting factor for oysters living in Manila Bay?
A. the amount of algae
C. the number of sediments in the water
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Answers & Comments
Answer:
Directions: Read the questions carefully. Write the letter of your answer on
a separate sheet of paper.
1. What organisms in a food chain which has the most energy?
A. decomposers B. herbivores
C. omnivores
D. producers
2. Which of these is a consumer-producer relationship?
A. snakes eating frogs
C. hawks eating rabbits
B. birds eating beetles
D. caterpillars eating a leaf
3. Planktons are small autotrophs that absorb energy from the sun. The shrimp eats the
planktons. The tuna eats the shrimp. The shark eats the tuna. Which of these is the
primary
consumer?
A. plankton
B. shark
C. shrimp
D. tuna
4. What type of organism that makes its own energy and begins the food chain?
A. consumer
B. decomposer
C. herbivore
D. producer
5. Which group of organisms in an energy pyramid acquires the most energy?
A. decomposer
C. second-order consumers
B. first -order consumers
D. third-order consumers
6. What diagram that shows the transfer of energy in one line?
A. food chain
B. food line
C. food pyramid
D. food web
7. Which of these is well- constructed food chain?
A. bacteria → owl → mouse → corn
C. . corn → bacteria → mouse→ owl
B. corn → mouse → owl→ bacteria
D. owl→ bacteria→ corn→ mouse
8. Which organisms that cannot make its own energy and eats only plants for their energy?
A. producer
C. secondary consumer
B. primary consumer
D. tertiary consumer
9. Which type of consumer is the frog in a food chain below?
grass →
insects →
frog → bacteria
A. producer
C. second order consumer
B. first order consumer
D. third order consumer
10. Why are plants considered as producers? They ________________.
A. produce fruits that can be eaten by animal
B. provide vegetable for animals and human consumption
C. produce root crops that supply carbohydrates to animal
D. convert energy from the Sun into chemical energy in the form of glucose (food)
11. What is a food chain? It is _________________________.
A. composed of biotic and abiotic factors in an area
B. overlapping food chains in an ecosystem
C. a series of events in which organism eats another and obtains energy
D. the amount of energy that moves from one feeding level to another in a food web
12. Which type of consumer obtains all its energy by eating only producers?
A. carnivoreB. herbivore
C. omnivore
D. scavenger
13. Which is NOT an abiotic factor?
A. air
B. bacteria
C. soil
D. water
14. What most likely happen first if you remove a primary consumer from the ecosystem?
A. Primary consumers would increase.
B. The number of plants would increase.
C. Secondary consumers would increase.
D. There would be more food for secondary consumers.
15. Which would be an abiotic limiting factor for oysters living in Manila Bay?
A. the amount of algae
C. the number of sediments in the water