20 points and i need !

water is made up of two atoms and one atom.
a oxygen, hydrogen
b sodium, hydroxide
c hydrogen, oxygen
d carbon, oxygen

Explain why the plants cortex would serve as the best food source for animals

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.