Sea urchins are preyed about by many predators that inhabit their marine environment, but also those animals that don't. The main predators of the sea urchin are crabs, large fish, sea otters, eels, birds and humans.
Interphase is the phase during which the growth of the cells take place along with the metabolic activity but the nuclear division in the cell does not occur. The three stages included within the interphase are the G1, S and G2.
Metaphase, from the ancient Greek Î¼ÎµÏÎ± (after) and ÏÎ±ÏÎ¹Ï (stage), is a stage of mitosis in the eukaryotic cell cycle in which condensed chromosomes, carrying genetic â¦information, align in the middle of the cell before being separated into each of the two daughter cells.