Prophase is the first phase of mitosis, this when the nuclear envelope breaks down and the nucleuse disappears. Hope I was able to help. :)
Explanation:
If the paramecium was not able to contract its contractile vacuole, it would be in danger of bursting. The cell would not be able to hold too much water. ... When Amoeba is placed in salt water, it will lose water by exosmosis and will shrink.
the polar heads interact with water; the nonpolar tails do not.
It would belong to the group known as the Alkane which have the general form
