Which of the following best describes the process of meiosis?
A it is the first stage of mitosis
B it occurs in all tissues that require growth or replacement
C it happens in all cells except in the brain and nervous system.
D it is carried out in cells that are involved in sexual reproduction

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

the real answer is b. scintillation counter