Muscles make up more than of a person's body mass.

a. 10%.
b. 25%.
c. 40%.
d. 75%

Answer;

-40%

Muscles make up more than 40% of a person's body mass.

Explanation;

-Body composition includes more than just muscle and fat; it also includes bones, organs, tendons and ligaments.

-Muscle mass includes the weight of the muscles in your body in kilograms or pounds. While the body fat percentage measures the amount of fat your body holds. Burning body fat can be a result of the accumulated muscles. Muscles are like engines when it comes to consuming energy.

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.

explanation:

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hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure