The total amount of chemical energy produced by autotrophs, such as plants and phytoplankton, is called gross primary production. The energy that remains after plants use some of the gross primary production to fuel their own metabolism is known as ________.

A) secondary production
B) positive primary production
C) negative secondary production
D) net primary production
E) negative primary production


D

Environmental & Atmospheric Sciences

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the scaly skin of a snake is ___________________ to the skin of a lizard

Fill in the blank(s) with the appropriate word(s).

Environmental & Atmospheric Sciences

The ________ is a basic Système International (metric system) unit of mass

A) ton B) gram C) ampere D) mole E) meter

Environmental & Atmospheric Sciences

The vulcanian eruption of Eyajafjallajokull in southern Iceland in 2010 resulted from ________.

A. an increase in subduction B. temperature of the magma increasing C. an earthquake D. glacial meltwater pouring into the magma chamber

Environmental & Atmospheric Sciences

The general term applied to stream-deposited debris is ________

A) refuse B) alluvium C) capacity D) discharge E) bedload

Environmental & Atmospheric Sciences