What conditions must be true for a population to remain in genetic equilibrium?
gene flow, genetic drift, sexual selection, population isolation, and no mutations
gene flow, random mating, no mutations, no genetic variation, and no natural selection
large population, sexual selection, gene flow, no mutations, and no natural selection
large population, random mating, no migration in or out, no mutations, and no genetic variation

D. Large population, random mating, no migration in or out, no mutations, and no genetic variation

Explanation:

This is because with random mating a species wont start to diversify slowly because of the separation of different groups among the species.

No migration because if the species could migrate then the group that migrated would slowly adapt to a new environment causing it to diversify.

No mutations because if an offspring is mutated and that mutated gene gets passed on, the species becomes diverse and no longer in genetic equilibrium.

And no genetic variation for obvious reasons.

Hope this helps!

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.