Ecology Review

Front

Energy at secondary consumer level (producer starts with 10,000 Joules)

Back

100 Joules

Front

In the given food chain, what could happen after the disappearance of the rabbit population?

Back

Snake population would decrease.

Front

The removal of which group would cause an immediate decrease in the amount of energy flowing through an ecosystem? Options: Producers, Consumers, Decomposers, Inorganic nutrients

Back

Producers

Front

A pond ecosystem is shown in the diagram below. Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?

• The frogs make energy available to this ecosystem through the process of photosynthesis.
• The algae directly provide food for both the rotifers and the catfish.
• The green-backed heron provides energy for the mosquito larvae.
• The catfish population helps control the populations of water boatman and water fleas.

Back

The catfish population helps control the populations of water boatman and water fleas.

Front

Which food chain most accurately demonstrates the flow of energy in a shortgrass prairie ecosystem? Options: grasshopper → bird → rodent → buffalo, hawk → snake → mouse → grasshopper, grasshopper → mouse → snake → hawk, snake → hawk → skunk → mouse

Back

grasshopper → mouse → snake → hawk

Front

A student measured some abiotic factors present in an aquarium in a biology laboratory. Which data did the student most likely record?

Back

The temperature and oxygen content of the water

Front

What is the best explanation of why decomposers are important in the food chain?

Back

They break down dead organisms and recycle nutrients into the soil

Front

Which statement is an example of how carbon moves through a food chain as part of the carbon cycle?

• Producers release carbon dioxide and consumers take it in.
• Producers take in carbon dioxide and store it. Consumers release from the producers.
• Producers take in carbon from the soil, and they release it when they are decomposed.
• Producers release carbon into the soil, and consumers take it in from the soil.

Back

Producers take in carbon dioxide and store it. Consumers release from the producers.

Front

Which of the following would lead to an increase in atmospheric carbon dioxide levels?

• Decrease in respiration
• Decrease in decomposition
• An increase in photosynthesis
• An increase in the burning of fossil fuels

Back

An increase in the burning of fossil fuels.

Front

What would happen if the Sun is removed from the water cycle?

Back

The water cycle would no longer occur because the Sun provides the energy for evaporation and transpiration.