Determine which of the following statements is true about energy in ecosystems. A. 10% of the energy Primary consumers absorb is lost as heat.
B. Primary producers lose 20% of the energy they absorb as urine and feces.
C. Primary consumers lose 60% of the energy they absorb from producers as urine and feces.
D. Consumers pass on 20% of the energy they get from a lower trophic level.

Which kind of aquatic ecosystem does the photograph most likely show? a. marsh b. swamp c. lake d. river

When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it

Clara wrote the following hypothesis for an experiment about acidophilic bacteria. bacteria cells will stop dividing in a basic (alkaline) environment because of the high ph. which statement is the best way to restate the hypothesis so that it is more specific? growing acidophilic bacteria in some environments will cause the cells to stop dividing because of ph. if the ph of their environment is changed, acidophilic bacterial cell division will be affected. if the environment of acidophilic bacterial cells becomes alkaline, the bacteria will stop dividing. the more alkaline an environment, the less cell division will occur in bacteria.