1. Is the study of relationship between living organism and their environment?

A. biology C. cytology

B. ecology D. zoology

2. What do you call the biotic component which cannot make their own food and have to eat other living things in order to survive?

A. consumers C. predators

B. decomposers D. producers

3. Which is an example of an abiotic factor in an ecosystem?

A. animals C. plants

B. decomposers D. water

4. What gas is needed by plants in making food?

A. carbon dioxide C. nitrogen

B. hydrogen D. oxygen

5. Which of the following statement is NOT true?

A. Plants provide oxygen to animals.

B. Animals provide carbon dioxide to plants.

C. Life continues to exist even without plants.

D. The materials flow in cyclic path to maintain balance in nature.


9. Rotten fruits and vegetables were dropped in the compost pit. After few days you found ants, millipedes, and several white worms crawling on the rotten wastes. To which group does it belong.

A. consumer B. decomposer C. manufacturer D. producer

10. These are group of organisms that are capable of making their own food.

A. consumers B. decomposers C. omnivores D. producers