What Is the Advantage of Constructing an Ecological Pyramid Based

question 31

Multiple Choice

What is the advantage of constructing an ecological pyramid based on biomass?

• A) Aquatic ecosystem pyramids actually look like pyramids.
• B) Size of the various organisms is eliminated as a factor.
• C) This includes the detrital food web as well as the grazing food web in one pyramid.
• D) This takes into account nutrient cycling as well as energy flow.
• E) This eliminates the need to include producers in the pyramid.

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Definitions:

Caldera

A large volcanic depression that is typically circular to elongate in shape and formed by collapse of a magma chamber.

Volcanic Mudflow

A rapid flow of volcanic ash mixed with water, often melting snow or glaciers, that moves down the slopes of a volcano, also known as a lahar.

Pyroclastic Column

A vertical column of volcanic ash and gas ejected into the atmosphere during an explosive volcanic eruption.

Fissure Eruption

A volcanic eruption that occurs when magma rises through and erupts onto the surface in a long fissure.