A) Which of the following describes the amount of organic material that is available for transfer
to the next trophic level after subtracting material used for respiration? (1 point)
Net Primary productivity
Biomass
Gross Primary productivity
Primary productivity
Net Primary productivity
A) Suppose a plant is eaten by a mouse, the mouse is consumed by a snake, and the snake is
in turn consumed by a hawk. What could be assumed about the level of available organic
matter in the mouse versus the plant? (1 point)
They both have the same amount of organic matter.
There will be less organic matter available.
Organic matter does not transfer between the plant and the mouse.
There will be more organic matter available.
There will be less organic matter available.
A) How does biomass change from lower to higher trophic levels? (1 point)
It fluctuates.
It decreases.
It stays the same.
It increases.
It decreases.
A) The incomplete burning of _____ in gasoline is known to create black carbon and contribute
to global warming. (1 point)
carbon
carbon dioxide
ethanol
methane
A) Why are there less secondary consumers in an ecosystem than producers? (1 point)
There is less land to use for habitat after the producers grow.
There isn’t enough energy available to support more secondary consumers.
More tertiary consumers will eat secondary consumers over producers.
Around 90% of energy from one trophic level to the next is available.