Translation involves several different types of trna molecules. which statement best describes how trna molecules assemble amino acids into a polypeptide?

a. one trna molecule assembles the polypeptide, and the others assist it.
b. three trna molecules assemble the polypeptide, and the others assist them.
c. each trna molecules assembles a different part of the polypeptide, and all at the same time.
d. the different trna molecules act in a specific order, one after the other like an assembly line.

The different tRNA molecules act in a specific order, one after the other like an assembly line

digestion

it excretes wastes

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.