Specialized proteins that act as catalysts for chemical reactions are carbohydrates lipids enzymes nucleic acids

Specialized proteins that act as catalysts for chemical reactions are enzymes.

Enzymes are special proteins that significantly act as catalyst, speeding up the rate of almost all of the chemical reactions that occur within cells. Enzymes are composed of long chains of amino acids that are joined together by peptide bonds. There are several types of enzymes and typically, a certain enzyme is responsible for a specific chemical reaction only. Enzymes are important for life because they perform various essential functions in the body, such as aiding in digestion and metabolism.

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.