By the Pollution of the ocean can kill plant and animal life near by and those who eat those plants and animals
If an anthropod does not change it's form except for increasing its size, this change would be considered an incomplete metamorphosis.
The three chromosomal aberration:
1.) Inversion - breakage of chromosome in two places , the other piece of DNA is re- inserted into the chromosome.
2.) Translocation - the one piece breaks off and attaches to another chromosome.
3.) Deletion - the loss of segment of chromosome.
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Muscular tissues or cells expand and contract to move the body
