Which statement correctly describes how snow effects Earth's system? Select one:

It reflects most of the sun's energy. It has high albedo.

It reflects most of the sun's energy. It has low albedo.

It absorbs most of the sun's energy. It has high albedo.

It absorbs most of the sun's energy. It has low albedo.

What organ is the first to receive nutrients that have been absorbed from the digestive tract?

What is the tern used to describe an individual that of a recessive allele that causes disease,but is otherwise healthy? a.carrier b.polycite c.target d.afflicted

1. which of the following levels of protein organization shows the complete 3-d arrangement of the polypeptide chain? a) primary b) secondary c) tertiary d) quaternary 2. the carboxyl groups on a protein molecule are composed of which of the following elements? a) nitrogen and hydrogen b) carbon, hydrogen, and oxygen c) carbon and hydrogen d) nitrogen, oxygen, and carbon 3. what part of the protein molecule makes it unique from other proteins? a) the carboxyl group b) the amino group c) the peptide group d) the r group 4. which of the following is an example of a protein that plays a direct role in immune function? a) collagen b) antibodies c) enzymes d) hormones 5. which of the following statements correctly describes the composition of proteins? a) most are composed of 20 common amino acids. b) most are composed of 10 common amino acids. c) most are composed of 20 common fatty acids. d) most are composed of 10 common fatty acids.