Enzymes are large molecules that speed up the chemical reactions inside cells. Each type of enzyme does on specific job. Enzymes are a type of protein, and like all proteins<span>, they are made from long chains of different </span>amino acids<span>.</span>
Add a picture so I can tell you
Answer:
D. Rounded grains cemented together by dissolved mineral.
Answer:
I think its the third one :)
Explanation:
hope this helped :))
