C. the crust and upper mantle
DNA Mutation is caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes. Thus, the correct answer is option D.
1.DNA Mutations are caused by environmental factors known as mutagens.
2.Types of DNA mutagens include radiation, chemicals, and infectious agents.
3.DNA Mutations may be spontaneous in nature.
Answer:
Soybeans are considered a whole source of protein.
Explanation:
This means that they provide the body with all the essential amino acids it needs.
B PLANT<span> maximize its </span>photosynthesis
