What are the factors that determine the level of harm an introduced chemical has on the environment? Please give me the answer and please make it kinda long but not really long. I put the article on top just incase you need it.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up