POST TEST ON on the Different Ecological Relationships (SIM)

1. If the cat eats the rat, the biological relationship is

• a. mutualism

• b. competition

• c. predation

• d. parasitism

2. Refers to the biological relationship wherein one organism lives in or on another organism and harms the host while it benefits.

• a. mutualism

• b. competition

• c. predation

• d. parasitism

3. In parasitism, one organism will live on/in the body of another organism that is harmed. An example is an ascaris in the intestines of pigs. How will you call the ascaris?

• a. Predator

• b. Prey

• c. Host

• d. Parasite

4. Barnacles sometimes live on the outside surface of other larger shelled organisms without causing any harm. What is the ecological relationship?

• a. Commensalism

• b. Predation

• c. Parasitism

• d. Mutualism

5. A parasite, such as a flea or a worm in dogs, shows an example of one organism receiving it’s ________________ from another host.

• a. Nutrition

• b. Competition

• c. consumer

• d. producer

6. What results when scarcity of resources takes place in an ecosystem?

• a. Drought

• b. Overabundance

• c. Extinction

• d. Competition

7. Which of the following in NOT an example of a symbiotic relationship?

• a. A mother bear caring for her cub

• b. Worm living in a cow's intestine

• c. An orchid on the tree trunk

• d. A bacterial infection

8. When a symbiotic relationship benefits both organisms, it is an example of:

• a. Commensalism

• b. Predation

• c. Parasitism

• d. Mutualism

9. How does a crocodile benefit from a bird eating from its mouth?

• a. It gets its teeth cleaned.

• b. It gets to eat the bird

• c. It gets to help the crocodile sleep

• d. It gets a defense against flies.

10. How do people benefit from bacteria in their intestines?

• a. The bacteria prevents humans from getting sick.

• b. The bacteria allows humans to eat a wider variety of foods.

• c. The bacteria allows humans to stay longer without eating.

• d. The bacteria allows human to stay longer without drinking