Plastics remain in the ocean environment because of their stability and resistance to degradation or biological processing. they do break up into smaller pieces either mechanically or by the action of eventually the fragments are reduced to tiny grain-size pieces that have been shown to be ingested by small creatures. they may concentrate persistent organic pollutants.

Protein synthesis actually begins in the nucleus when transcribes a single gene on the dna molecule is copied. the process of copying this gene is called this copy is known as and contains the protein building instructions. this copy is sent out into the cytoplasm to the part of the cell known as the the of the ribosome will join together to form a functional ribosome when they attach to the mrna. as the mrna moves through the ribosome, the message is read by transfer rna brings the correct back to the ribosome. the amino acids are placed in the correct order and are hitched together by

Select the correct answer from each drop-down menu proteins are

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these