DNA is the correct answer but next time put answer choices so that people can better answer your questions. Thanks!
Answer:
Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.
Explanation:
The numbers are 2 of them
Answer:
A person can have normal chromosomes in number and structure, but still have a disease or condition caused by a mutation in one or more of the genes on the chromosomes. A single gene defect usually does not cause the chromosome structure or number to be abnormal.
Explanation:
I'm not sure if this is correct but hope it helps.
Answer:
Producers are the foundation of a food chain.
Explanation:
They provide energy for all of the consumers in an ecosystem.
