A. Individuals migrate between 2 populations that have the same gene pool. b. The thickness in fur coat for particular small mammal is determined by the average temperature in its environment. Over time, the environment gets warmer. c. A mutation introduces a new wing color in a group of butterflies. d. A flood washes away 3/4 of a population of ground squirrels. e. Within a lizard population, there is genetic variation in the length of the tail. The neighborhood cats chase the lizards, and have an easier time catching the ones with long tails.

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.

thats not a question