Which statement is an example of a scientific theory? A. The Earth is the third planet from the Sun and has one moon, which orbits the Earth. B. All living organisms are composed of one or more cells, which came from pre-existing cells. C. The amount that caffeine affects a person's heart rate differs based on the person's age. D. Hummingbirds do not like the color white because they visit other colored flowers more often.

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.

Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? a) catalysis b) metabolism c) anabolism d) dehydration e) catabolism

This is collection of data made by comparing objects in standard units. in science, the units are metric.