Answer:
It's D the Last one
Explanation:
It's the last one because a population will continue to grow unless it has something that effects it's growth in a negitave way.
Hope I helped :)
Answer:
C
Explanation:
Protozoa have been classified into three trophic categories: the photoautotrophs which harness the sun's radiant energy in the process of photosynthesis; the photoheterotrophs, which although phototrophic in energy requirements, are unable to use carbon dioxide for cell synthesis and must have organic carbon compounds
The answer to this question is
A. Metabolism