What will happen to snakes in the long term if mice become extinct? a. the number of snakes will increase temporarily, and then decrease. b. the number of snakes will decrease permanently, but they will not die out completely. c. the number of snakes will decrease temporarily and then increase. d. snakes will die out if they do not find an alternative food source.

d. Snakes will die out if they do not find an alternative food source.

Explanation:

In the ecosystem, most of the predator species have more than one prey. This ensures availability of food if the population size of one of their prey comes down or becomes extinct.  

Snakes feed in mice. In mice population becomes extinct, snake population size would reduce due to lack of prey population. In the long term, the snakes would have to find some other available prey population to feed on so as to ensure the continuity of their species.  

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.