What are two difference between the egg nucleus and the polar nuclei?

In the pollen tube there are two male gametes and tube nucleus. one male gamete combines with egg cell to form zygote. And other male gamete combines with polar nuclei to form fusion nucleus which is triploid. So,the fate of egg cell is to become zygote and polar nuclei to become fusion nucleus.

human didn't come from monkeys man i hate these stupid teachers

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.