The energy is used during the process therefore causing less energy in the outcome.
Answer:
Please see below
Explanation:
The reason behind this is the phenomenon of natural selection. The deleterious mutations do not provide a survival advantage so they are selected against, which results in these type of mutations to not be passed on - rather, they eventually get eliminated from the population.
Answer:
A cell cannot just keep growing because the part of the inner portion of the cell grow quickly as compared to outer side of the cell i. e. cell membrane. So we can say that cell membrane is the limited factor which doesn't allow cell to grow bigger in size. The growth of organisms increases not because of cell size increases, it is due to the number of cell increase because of cell division.