Answer:B, 4,3,1,5,2,7
Explanation:
4) The A site is aligned with the mRNA codon for the next amino acid..
3) The charged aminoacylated tRNA and elongation factor.
Answer:The eustachian tube is a canal that connects the middle ear to the nasopharynx, which consists of the upper throat and the back of the nasal cavity. It controls the pressure within the middle ear, making it equal with the air pressure outside the body.
Explanation:please give brainliest