Directions: Read each item carefully. Choose and write the letter of the correct.
answer on the space provided before each number
11.
What is the study on the interaction of living things with one another and with its
environment?
A Community
C. Ecosystem
B. Ecology
D. Population
2. Is there an interaction between ducks and cows?
A maybe
C. none
D. I don't think so
3. There are different species of animals and plants living together in the same environment
How is this organization classified?
A Association
C. Ecology
B. Community
D. Population
4. What do you call the type of interaction where both organisms benefit from each other?
A Commensalism
C Mutualism
B. Competition
D. Parasitism
5. In rice fields, ducks eat the eggs of golden apple snail, a pest for rice plants. What
relationship exists between the ducks and the rice plants?
A Commensalism
C. Mutualism
B Competition
D. Parasitism
6. They consist mainly of green plants and grasses which make food
through the process of photosynthesis
A Consumers
C. Producers
B. Decomposers
D. Sun
7. Il provides energy needed by plants to make food out of abiotic or non-living things
substances
A Abiotic substance
C. Secondary
B. Primary Consumer
D. Sun
8. These are non-living components in an ecosystem such as water, carbon dioxide, and
other minerals which plants need in order to produce food and grow
A. Abiotic substance
C. Secondary
B Primary Consumer
D Sun
9. Which of the following examples of living things in an ecosystem
show mutualism?
A. Chicken and corn kemels C. Carabao and cow
B. Ants and aphids
D Dog and cat
10. In commensalism, how does an orchid benefit from a tree? What is the type of
ecological relationship?
A The orchid grows on the bark of the tree. C. Orchid gets protection from the tree
B. Tree provides nutrients for the orchids
D. Birds use the orchids as nest​