Answer: A. Chemical signal
Explanation:
Chemical signal is the type of communication which coordinates actions between neighboring cells
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This ability originated in single cells organisms and was essential for the evolution of multicellular organisms because after a cell receives a message, it is transferred across the plasma membrane and changes are brought about within the cell in response to this message.
Yes the answer would be true
That as you increase in trophic level 1/10th of the nutrients is lost. Starting at the consumers (plants) all the way to humans.
Ribosomes- Organelles that help in the synthesis of <span>proteins.</span>