Unlike women, men do not experience a major, rapid (over several months) change in fertility as they age (like menopause). Instead, changes occur gradually during a process that some people call andropause. Aging changes in the male reproductive system occur primarily in the testes.
Answer:
B
Explanation:
the constant in biology does not change during an experiment. it is also called the controlled. think of it the same as algebra.
Explanation:
according according to slideplayer.com better made sexual selection is driven by sex differences in reproductive rate.
Answer:
Suitability of environment and tolerance.
Explanation:
Suitability of environment and tolerance is the reason which tells that an introduced species might be very successful in a new environment. The species have all the adaptations that helps in the survival of introduced organism. Strict checking on the airports and destruction of plant species that the person bring with it are the actions take by the government that prevent the introduction of additional new species in the ecosystem.