A scientist identifies a sequence at random from the human genome. Which description of the sequence is the most likely?

A. The sequence is located on a sex chromosome.
B. The sequence is part of a gene for cell growth and development.
C. The sequence is part of a gene for immunity and defense.
D. The function of the sequence is unknown or unidentified.

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.