There are millions of different species of animals, plants, and microorganisms. which of the following factors do biologists consider to be the most important when classifying organisms?

A. details of internal and external body structures

B. environmental conditions of the organisms' habitats

C. inherited and acquired behaviors

D. general appearance

If these are the options the answer is A

it's c. (to reduce the greenhouse effect/carbon gasses)

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.