Its the epidermis because it is subdivided into two layers.
I know this sounds silly but I just took the test they were made in the stars or B
Nitrogen 14 and nitrogen 15 differ because nitrogen 14 has 7 neurons and 7 protons. Nitrogen 15 has 8 neurons and 7 protons.
Answer:
Explanation:
An organism can't chose to have a mutation because it depends on the way they are born. If they are missing some type of mineral, (Protein, Vitamin, etc.) they will have a mutation because they're missing that. Well, something similar to a mutation is natural selection and genes. For example, there are some short and tall giraffes. The tall ones can reach the tree and the short ones can't so they die and the tall ones can reproduce and their offspring will inherit that trait
