Making changes in the dna of organism is called mutation
Answer:
Mrs. Grayson, the much loved teacher of first grade, retired last year.
Explanation:
The subject of this sentence is Mrs. Grayson, and the sentence says she retired last year at age seventy two. "The much loved teacher" describes Mrs. Grayson, and should have a comma after (and before it).
Answer:
The set of input values is called the domain.
Answer:
B. I think Helen Keller's early outbursts were signals that she was a strong individual.
Explanation:
