What scientific knowledge about macromolecules is a direct result of gerardus johnannes mulder’s 1838 discovery? a. all proteins contain carbon, hydrogen, oxygen, and nitrogen. b. all carbohydrates contain carbon, hydrogen, and oxygen. c. nucleic acids are polymers with nucleotide monomers. d. the helical structure of dna is essential for protein production.

Answer;

A. All proteins contain carbon, hydrogen, oxygen, and nitrogen.

Explanation;

Studies on proteins led Mulder to his protein theory (1838): he supposed that all albuminous substances consist of a radical compound (protein) of carbon, hydrogen, nitrogen, and oxygen, in combination with varying amounts of sulfur and phosphorus. The differences among proteins resulted from multiplication of the protein units in conjunction with the two other elements.

The answer is A -  All proteins contain carbon, hydrogen, oxygen, and nitrogen. I just did the review

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.

answer; the above statement/question is (false);