1. Which of the following describes the amount of organic material that is available for transfer to the next trophic level afte
r subtracting material used for respiration? -Gross Primary productivity
-Biomass
-Net Primary productivity
0r
-Primary productivity
2. 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?
-There will be less organic matter available.
-There will be more organic matter available.
-Organic matter does not transfer between the plant and the mouse.
0r
-They both have the same amount of organic matter.
3. How does biomass change from lower to higher trophic levels?
-It fluctuates.
-It increases.
-It decreases.
0r
-It stays the same.
4. The incomplete burning of _____ in gasoline is known to create black carbon and contribute to global warming.
-ethanol
-methane
-carbon
0r
-carbon dioxide
5. Why are there less secondary consumers in an ecosystem than producers?
-Around 90% of energy from one trophic level to the next is available.
-There is less land to use for habitat after the producers grow.
-More tertiary consumers will eat secondary consumers over producers.
0r
-There isn’t enough energy available to support more secondary consumers.
<span>We have two surfaces of nerve cell the outer and inner surface
- resting : when the outer layer ion charges more positively than the inner layer - depolarization : we have the counter part of this state - repolarization : return to the polarization - hyperpolarization : the inner negative ion charges will be more negative even more than the resting potential
I hope that this is the answer that you were looking for and it has helped you. </span>
