Answer: 4
Explanation: There are 4 valence electrons in group 14, the Carbon group.
Answer:
The entire population will gradually become more similar to the best-adapted members.
Explanation:
Natural selection will cause the best-adapted members to have a better chance of survival and repopulation.
Answer: low pollution
Explanation:
The environmental effects of nuclear power is light compared to others
C. Specialized cells may lose the ability to reproduce.