Answer:
a. Men and women differ physically in some limited ways.
Explanation:
The concept of physical superiority is a relative one, so to say that one gender is physically superior to another is wrong not only socially, but also biologically. That being said, there are still some physical differences between men and women. For instance, men in average, tend to be taller and stronger than women, while women tend to have a higher pain threshold than men. Therefore, the most appropriate statement is that a. Men and women differ physically in some limited ways.
Overproduction
Most species produce more offspring than can survive.
Competition
Since living space and food are limited, organisms must compete for the necessities.
Variation
Differences between individuals in a population.
Adaptations
Any kind of inherited trait that improves an organism's chances of survival.
Natural selection
The environment selects organisms with optimal traits to be the parents of the next generation.
Speciation
Over many generations, favorable adaptations accumulate and may result in a new species.
One diploid cell > four haploid cells