Whch of the following below is one reason why groundwater become polluted? a. pollutants mixed with water pass through permeable layers above the aquifer. b. factories dump their waste directly into aquifers. c. refuse infiltrates the water table when garbage is dumped. d. all of the above

Here's one way to follow the scientific method. place the missing steps in the correct position in the process.

What organ systems are working to you cool down after a workout?

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.