Pre-Test Multiple Choice: Read each item carefully. Write the letter of the correct answer in a separate sheet of paper.
1. Mongo seedlings grow in a pot. What kind of relationship exists among the mongo seedlings?
A. Competition B. Mutualism C. Parasitism D.Predation
2. In D. Predatio a predator-prey relationship the predator eats the prey. Which of the following organisms is a predator?
A. Earthworm B. Grass C. Lizard D.Mosquito
3. There are different kinds of organisms living in a forest. Plants that grow on the forest floor do not get as much sunlight as those of the taller trees. What relationship exists among these plants ? A. Cornmersalism B. Competition C. Mutualism D. Parasitism
4. Lactobacillus bacteria are probiotics that live inside the body of man. These bacteria help aid in digestion and promate good health, and in turn, the host provides a source of nutrients Which of the following relationships exists between man and lactobacillus bacteria? A. Competition B. Mutualism C. Parasitism D. Predation
5. Which of the following examples display mutualism?
A. A bird shaking its nest on the branch of the tree
B. Orchids attach itself on the trunk of a tree
C. Butterfly feeding on nectar of a flower D. Chicken feeding on worm
6. Parasicism is a relationship in which
A. one organism benefits while the other organism is affected.
B. one organism benefits and the other is unaffected
C. both organisms are benefitted.
D. both onganisms are harmed.
7. The ecological relationship of a sea anemone and clown fish is the same kind of relationship as that of
A a butterfly and a flower
B. a lizard and a mosquito
C. the tapeworm and a chid
D. three pigs in the pigpen
8. Which of the following statements is TRUE in predation?
A. One organism is benefited while the other is unaffected.
B. One organism is benefited while the other is hammed.
C. Both organisms are harmed.
D. Both onganisms are benefited.
9. Which of the following interactions exhibits commensalism?
A Cat and rat
B. Spider and tree trunk
C. Carabao and cow
D. Lice and child
10. Which of the following relationships describe competition?
A. An orchid living on a trunk of an acacia tree
B. Tick attaching on the skin of a dog
C. Tigers hunting and filling a buffalo
D. Spider eating an insect
11. Bacteria can be beneficial or harmful to man Some bacteria help in digestion others cause diseases. What kind of organisms are those bacteria that cause diseases?
C. Parasite D. Predator A. Commensal
B. Host​