Bryant compared six different kinds of fertilizer. he grew fourteen plants from cuttings of one plant to make sure they would all be the same. he gave each plant the same amount of water and sunlight each day. he also gave each plant a small amount of fertilizer every week. two plants got each kind of fertilizer. two plants got no fertilizer. in this experiment, the kind of plant was a variable that was

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.

Eutrophication caused by human nutrient pollution.

Do plants make food in their stems flowers roots or leaves?