Answer: no it is not true
Explanation:
C. Duh. No one has to agree with a successful thesis.
When the human body (its cells) is exposed to radiation (X rays and gamma rays), electrons are emitted from atoms and molecules. ... ・These radicals react immediately with surrounding atoms, causing abnormal chemical reactions (or, minor damage to localized areas of cells).
Genetic variation is advantageous because it enables some individuals and, therefore, a population, to survive despite a changing environment.
the internal structures provide shapes and support to a variety of living organisms both unicellular and multicellular
