A"motor homunculus" can be visualized as an overlay on the precentral gyrus. the reason the facial region of this homunculus covers such a large surface area is that a "motor homunculus" can be visualized as an overlay on the precentral gyrus. the reason the facial region of this homunculus covers such a large surface area is that: a) we have very expressive faces. b) we have very sensitive lips. c) our ears are large for hearing. d) our eyes are large for seeing.

a) we have very expressive faces

Explanation:

The reason the facial region of this homunculus covers such a large surface area is that we have very expressive faces

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.

well the answer is 2!