Answer:
D.
Explanation:
When an arrow points from a seal to a shark it means the shark is recieving energy from that seal. (By eating it.)
reproductive cells like eggs and sperm
4 daughter cells
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ECM is the extracellular matrix, or the set of extracellular molecules secreted by cells with the purpose to support surrounding cells. In plants the cell wall is the ECM and in mammals ECM can be in the form of fibrils and may constitute a significant portion of the bulk of the organism and it also referred as connective tissue.
