Answer:
A beacuse they can die without food
During the S phase in the cell cycle, the chromosomes are replicated so that there are two copies. These copies are necessary so that each daughter cell created during the M phase will have an identical copy of the DNA.
Therefore, the answer is A: The DNA must be replicated.
The chromosomes joining, cell membrane expanding, and cytoplasm separating all happen during the M phase (mitosis).
The subunits are called nucleotides
Answer A:
The food chain can be drawn as follows:
Carrots
↓
Rabbits
↓
Snakes
↓
Eagles
Answer B:
The animals in the second trophic level are prey to the animal of the third trophic level. The energy which is stored in the rabbits will be received by the snakes of the third trophic level when a snake will consume a rabbit. However, only 10% of the energy will pass from the rabbits to the snakes.