Pre-test
Directions: Read the questions carefully. Write the letter of the correct answer on the
blank provided before the number.
1. Which of the following interactions shows mutualism?
A. A frog feeds on a fly
B. A liver fluke in cattle's bile duct
C. An orchid growing on a tree branch
D. A bird eating the meat from between the crocodile's teeth
2. What ecological relationship is observed when ticks live on a dog's body?
A. Commensalism
B. Mutualism
C. Parasitism
D. Predation
3. Which of the following interactions describes competition?
A. Birds nesting on a tree
B. Cat chasing a rat for its meal
C. Butterflies flying from one flower to another
D. Zebras and gazelles eating grass in a temperate grassland
4. Which of the following correctly describes the relationship between mosses
and a tree?
A. The moss is benefited while the tree is harmed
B. The moss is harmed while the tree is benefited
C. The moss is benefited while the tree is unaffected
D. The moss and the tree both benefited from the relationship
5. What is the role of a bird in its interaction with a worm?
A. Host
B. Parasite
C. Predator
D. Prey
Pasagot po plss ​