Mastery 5 Review

Which of the following is a relationship in which both organisms benefit?

• mutualism

• organism

• parasitism

• commensalism

In the diagram of a marine food web, which term describes the sea turtles?

• third-level consumers

• primary decomposers

• aquatic herbivores

• autotrophic producers

In a typical forest community, plants are producers, rabbits are primary consumers, and wolves

are secondary consumers. Which diagram correctly represents these relationships?

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Mark conducted the following lab experiment.

Which of these MOST LIKELY will happen to the leaves after a month?

• They will remain on top of the soil.

• They will decay and be absorbed by the plant seed.

• They will decompose and supply nutrients to the soil.

• They will grow into a new plant.

In order for energy to flow through this food web from the sun to the yellow perch, the perch

must...

• Eat the valve snail or the mosquito larva.

• Eat pond grass and algae.

• Live in warmer areas of its habitat.

• Go through the process of photosynthesis.

In the diagram, how do decomposers get energy?

• Decomposers absorb energy from the sun.

• Decomposers get energy from food made by plants that made food through

  photosynthesis.

• Decomposers convert the sun's energy into sugars through photosynthesis.

• Decomposers provide heat for the sun.

A tapeworm lives in human intestines, absorbing the nutrients that would normally be absorbed

by the person. This eventually causes the person health problems. The relationship between

the tapeworm and the human is

• parasite / host

• consumer / producer

• predator / prey

• herbivore / omnivore

Resources such as water, food, or sunlight are more likely to be limiting factors

• when population size is decreasing.

• when predators eat their prey.

• when a population is approaching the carrying capacity.

• when the population is small.

A rabbit population has increased noticeably in the past ten years. Which of the following is a

reasonable explanation for this population growth?

• Competition for food has increased among rabbits.

• An organism that relies on similar food sources has migrated into the area.

• Abnormal weather conditions have decreased water levels of the local ponds.

• The rabbit's main predator has been eliminated by human development.

If the corn and oats were completely removed from the food web in the diagram, which of the

following would be the most affected?

• snakes and raccoons

• mice and rats

• grasshoppers and crickets

• hawks and owls