Exam 3: Ecosystems: What Are They and How Do They Work

Match the items listed below with the appropriate choice -On the generalized structure of the Earth figure, choose the letter of the layer that consists of the Earth's crust and upper mantle.

Briefly explain why clearing a rainforest can affect local weather.

A grizzly bear eating blueberries is best categorized as which of the following?

Match the items listed below with the appropriate choice -On the generalized structure of the Earth figure, choose the letter of the layer that is comprised of water, ice, and water vapor.

Water has the ability to filter out wavelengths of the sun's ultraviolet radiation that would harm some aquatic organisms.

Tropical rain forests cover about 2% of the Earth's land surface, and

Despite the ocean's low NPP, it creates more of the Earth's NPP than any of the other ecosystems.

Match the items listed below with the appropriate choice -On the generalized structure of the Earth figure, choose the letter of the layer that is composed of all of the Earth's ecosystems.

Bacteria, deer, humans, and spiders are all examples of ____________________.

The hydrologic cycle is driven primarily by

A critically important part of the hydrologic cycle is the transpiration of water through plants into the atmosphere. This water has traveled from the roots up to the top leaves and then moves out as water vapor. In the case of some plants, such as redwood trees, this can be a distance of hundreds of feet. Explain how it is that water can move up naturally, when forces of gravity might make one think that this is impossible.

-What trophic level does the blue whale occupy in this food web?

Which statement least characterizes laboratory research?

All physical forms of water (solid, liquid, and gas) make up the

A community of different species interacting with one another and the physical and chemical factors of their nonliving environment is called a(n)

Plants utilize a portion of their GPP for respiration.

-Which animal consumes energy from the highest number of links in the food web? Name a possible problem that this animal could be subjected to that others in the food web do not risk.

A type of acid rain is produced because of sulfur dioxide in the air.

Tropical rainforests cover about__________% of the earth's surface, but contain about ________% of the earth's known terrestrial plant and animal species.

-In the figure of an ecosystem, choose which of the components are categorized as biotic.