The answer is A because the males sperm determines the sex of a baby.The determines sperm is carrying an X or Y chromosome.
The mass is made up of protons and neutrons, the valence electrons only determine stability, not mass
Answer:
protons is 7 neutrons should be 9
Explanation:
protons number is its atomic number
the number of protons and the number of neutrons determine an element's mass number.
The molecules which store and process genetic information is DNA - deoxyribonucleic acid.
Answer:
chitin
Explanation:
chitin is a complex carbohydrates, similar to cellulose, that makes up organic structure, such as the cell walls of fungi and exoskeletons of insects and other arthropods.
