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APES Unit 2 Terms Questions and
Answers (100% Correct Answers)
Already Graded A+
primary productivity
Ans: rate at which organic matter is created by producers in an
ecosystem
law of conservation of mass
© 2026 Assignment
Ans: Matter is not created nor destroyed in any chemical or physical
change
Guru01 - Stuvia
Law of Conservation of Energy
Expert
Ans: Energy cannot be created or destroyed
negative feedback loop
Ans: A feedback loop that causes a system to change in the opposite
direction from which it is moving
positive feedback loop
Ans: Causes a system to change further in the same direction.
Eutrophication
Ans: A process by which nutrients, particularly phosphorus and nitrogen,
become highly concentrated in a body of water, leading to increased
growth of organisms such as algae or cyanobacteria and cause hypoxia
gross primary productivity
Ans: The total amount of solar energy that producers in an ecosystem
capture via photosynthesis over a given amount of time
net primary productivity
Ans: The energy captured by producers in an ecosystem minus the
energy producers respire
APES Unit 2 Terms Questions and
Answers (100% Correct Answers)
Already Graded A+
primary productivity
Ans: rate at which organic matter is created by producers in an
ecosystem
law of conservation of mass
© 2026 Assignment
Ans: Matter is not created nor destroyed in any chemical or physical
change
Guru01 - Stuvia
Law of Conservation of Energy
Expert
Ans: Energy cannot be created or destroyed
negative feedback loop
Ans: A feedback loop that causes a system to change in the opposite
direction from which it is moving
positive feedback loop
Ans: Causes a system to change further in the same direction.
Eutrophication
Ans: A process by which nutrients, particularly phosphorus and nitrogen,
become highly concentrated in a body of water, leading to increased
growth of organisms such as algae or cyanobacteria and cause hypoxia
gross primary productivity
Ans: The total amount of solar energy that producers in an ecosystem
capture via photosynthesis over a given amount of time
net primary productivity
Ans: The energy captured by producers in an ecosystem minus the
energy producers respire
