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Rough ER is dotted with ribosomes which give it a "rough" appearance. Smooth ER doesn't contain ribosomes. :) Hope this helps!
dont copy me
The best answer is organisms...
Cells only grow to replace other cells that die off and allow for the continued existence of the organism.
Please correct me if I'm wrong... :)
Answer:
Natural selection.
Explanation:
Natural selection was the theory "survival of the fittest"
This is known as kin selection.
Behaviors which increase the reproductive success of genetic relatives increase the inclusive fitness of the individuals. If you have discussed Hamilton’s rule, recall that an allele will rise in frequency in the population over time if rb > c. Where r is the relatedness coefficient (to the relative benefitting from the behavior), b is the additional offspring that the relative has, and c is the personal offspring that are lost.
