Answer:
Option A is correct
Explanation:
Cadherin proteins in metastasizing cancer cells are likely to have mutations that make them less "sticky
The size of a population refers to the “Amount”
Answer: the lowest level on the pyramid has the higest amount of energy, the peak top the top has the lowest
Explanation:
One condition that is required for viruses to reproduce is that they must be located within living cells.
When a virus is outside a living cell, it is not active and can not carry out any life process, but immediately it enters a living cell, it becomes active and cause the host cells to reproduce thousands of identical virus offspring at a very rapid rate.