Answer:
Option A is correct (Alfred Wallace).
Explanation:
Option A is correct (Alfred Wallace).
According to the evolution theory all living species are evolved from a simple life source with the passage of time.
Points of natural selection:
- Genetic variation are passed from generation to generation but environment can cause variations too.
- Individuals in species have gene variation which is due to random mutation
- Those who can not adopt to environment can not have their genes pass to next generation.
- Natural Selection is also called as "Survival of the fittest".
If the cells did not differentiate, 1 virus could kill an entire species.
Answer:
I believe its gametes that is produced, which are cells with half the chromosome amount of normal cells.
Explanation:
Answer:
Explanation:
Often abuse occurs as part of the three-stage cycle. They cycle of violence consists of a tension-building stage, a violent episode, and a calm or "honeymoon" stage. During the tension-building stage, the victim may try to please the abuser or reason with the abuser to prevent