A) both have strong scientific support.
The sclerenchyma is the tissue in which creates the plant firm and hard. The two kinds of sclerenchyma cells exist fibers and sclereids. Their cell walls be made up of cellulose, hemicellulose and lignin. The sclerenchyma cells are the principal associate cells in plant tissues that have come to a close elongation.
Since two females are unable to reproduce. Therefore, if only two females are still alive, the species will become extinct.
Plant cells have cell wall but animal cells don't have any cell wall.
The Gulf of Mexico provides 72 percent of the shrimp harvested in U.S. waters. Those populations are at risk because the dead zone in the Gulf of Mexico. I<span>t is a zone that formed when it lost its keystone species.</span>
