Cells are the most simple level of organization, as tissues contain cells, organs contain tissues and systems contain organs, so R would be your answer.
Answer:
Carbon dioxide
Explanation:
The carbon combines with oxygen to form carbon dioxide (CO2) and is released back into the atmosphere as a waste product when animals breathe and exhale.
A
biologist has found an organism she cannot identify while doing a
census in a swamp. The best characteristic to look for in order to
decide whether this organism should be classifies as a protist or as
a plant is….
Answer:
B) If it is unicellular, it is a protist.
<span>Although
there are single celled archaea and fungi.</span>
<span>I
hope it helps, Regards.</span>
Refers to the environmental capacity , as much of something it can hold