APES Unit 1 Test Review

Which of the following is an example of symbiosis?

• A mother bear taking care of her cub

• A married couple who agree to split their rent and share housework duties.

• A worm living in a cow's intestine.

• One chimp cleaning and grooming the hair of another chimp.

Which of the following is an example of a parasite?

• A flea

• An orchid

• An Egyptian plover

• The bacteria that live in human intestines

How is commensalism different from mutualism?

• In commensalism, one species benefits while the other is unharmed; in mutualism, both species benefit

• In commensalism, one species is harmed while the other benefits; in mutualism, both species benefit

• In commensalism, neither species is harmed; in mutualism, one species is harmed

• In commensalism, both species benefit; in mutualism, one species is harmed

Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers where the larvae hatch and eat some of the developing seeds. Both species benefit. 

• parasitism
• commensalism
• mutualism

What is a predator?

• An animal who kills and eats other animals

• An animal who is killed and is eaten by other animals

A carnivore is an animal which

• hunts and eats other animals. Can only be predator.

• hunts and eats other animals. Can be both prey and predator.

• eats both plants and other animals. Can be both prey and predator.

• eats only grass and plants. It's usually a prey.

_{If the amount of food or resources available increases, the carrying capacity for an animal.....}

• Stays the same

• Increases

• Decreases

• Fluctuates

What growth pattern describes a population whose growth rate slows or stops following a period of exponential growth?

• logistic growth
• population growth
• exponential growth
• predator-prey cycle

This is the largest number of individuals of a population that the environment can support...

• carrying capacity

• population crash

• lag phase

• mutualism

Which type of growth is best illustrated by this rabbit population?

• exponential

• logistic

• S-shaped

• predator-prey