Answer:
Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms. Gregor Mendel, a scientist and Augustinian friar, discovered genetics in the late 19th-century. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring.
Explanation:
The damage were doing to the environment and ozone layer are a likely cause of the increased in skin cancer
I'm not seeing any options to choose from but Mitochondria and Chloroplasts provides plants with energy.