B is the answer. my aunt has a malignant tumor and that means its active
Answer:
The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.
Explanation:
Body fluids are drawn into the valved ostia
Answer:
8 chromosomes in its skincell
Explanation:
Sex organ is (n)
Other than sex organ is 2(n)
