Evolution has led giraffes to have very long necks. Trees in the savannah have less leaves on bottom branches because of other animals. For the giraffe to survive, their necks slowly became longer as they could eat more leaves from upper/top branches. If they had not evolved longer necks, they would not exist today.
Answer:
B. tRNA molecules bring amino acids for the ribosome to link together.
Explanation:
Transfer ribonucleic acid (tRNA) is a type of RNA molecule which are responsible for the decoding of messenger RNA (mRNA) into protein. During translation, with the help of tRNA, protein in the form of amino acid is produced from a messenger RNA molecule. The tRNA recieves message of nucleic acid and formed protein according to the instructions.
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