How are primary and secondary succession similar?
a.
both primary and secondary succession involve ecosystems that have no soil.
b.
both primary and secondary succession involve ecosystems recovering from a disruptive event.
c.
both types of succession require a pioneer species to aid recovery of ecosystems.
d.
primary and secondary succession have no similarities.

The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.