The four major classes of biological macromolecules are carbohydrates, lipids, proteins, and nucleic acids.
Answer:
thx for points here's a guess the ox
Explanation:
Answer:
Enzymes are proteins that act as biological catalysts, Enzymes speed up chemical reactions that take place in cells.
Explanation:
There are very few fossils. Most were either soft bodied, decayed, or buried so deep that they are difficult to reach.