The answer to the question above is a cell.
Answer:
the central nervous system, cardiovascular, respiratory, and musculoskeletal systems
Explanation:
I would say D...just because of the greenhouse effect
<span>Conservationists establish that the minimal viable population of a population of tigers in an extensive geographical area is 16. Given that the current population of tigers is 10, which is lower than the established minimal viable population, the tigers </span><span>will die out because they will be unable to sustain their population. </span>
<span>vestigial structures because they are hard </span>