Organization, Metabolism, Responsiveness, Movements, Reproduction, Excretion, Digestion, and Respiration.
Answer:
its a barrier that goes around everything else
Answer:
A. the cell membrane protects the cell
The first trophic level
they would want to eat the primary producers, which are located at the first trophic level. due to the 10% rule only 10% of the energy from the previous trophic level is passed on.
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(D) Nonpoint source pollution is difficult to regulate, because its source is difficult to track.
