The answer is option 4 :3
B ecosystems because that’s where intraspecific competition occurs
Sorry but Im doing this for points!
Explanation:
In the movement of sperm tail plays an important role due to which sperm is able to move.
Sperm move to the uterine tube through uterine contractions and the energy of their own flagella.
Motility of sperm is also depend upon various metabolic pathways and the mechanism of regulation.
<h3>What is causes sperm to move?</h3>
The structure of sperm contains tail which have large numbers of protons channels which are known as Hv1 channels that respond to changes in pH and concentration of zinc outside the cell.
Learn more about movement of sperm here :
brainly.com/question/10203592
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Cause when viruses disperse there gone to evolve then come back once they evolved to try to make things sick yet again.
