B. MULTIPLE CHOICE. (5 points)
Directions: Select the letter of the correct answer. Write your answer on the blank before the
number
6. What ter best describes the benefited organism in a predation relationship?
A. host
B. parasite
D. predator
7. What relationship is shown when the frog eats the mosquito?
A. predation
C. mutualism
B. parasitism
D. competition
8. Which of the following animals is a first-order consumer?
A. snake eating rat
C. worm eating leaves
B. bird eating worm
D. hawk eating bird
9. Birds feed on worms. Which type of consumer is the bird?
A. producer
C. second-order consumer
B.first-order Consumer
D. third-order consumer
10. A bird builds its nest on a mango tree. What is the relationship exists between the two
organisms?
A. mutualism
C. predation
B. parasitism
D. commensalism
11. When two organisms attempt to use the same resource, the result is
A. competition
C. parasitism
B. predation
D. commensalism
12. Which of the following ecological relationships is considered parasitic?
A. tapeworm in the intestine
B. bees transporting pollen from flowers
C. two dogs fighting for a piece of bone
D. birds eating the insects from the back of a carabao
13. What type of relationship is commensalism?
A. One species benefits and the other is harmed.
B. Two organism compete for the same food source.
C. Both species involved benefit from the relationship.
D. One species benefits and the other is not affected at all.