What type of cell division divides the number of the cell's chromosomes inhalf and is used for the process of reproduction?

Meiosis

Explanation:

Meiosis cell division is used in the formation of gametes with haploid number of chromosomes. Meiotic cell division involves two round of cell division hence the 2n chromosome at the start of the division eventually results in n/2 chromosomal number in 4 daughter cells at the end of the division.

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.

atp is used for energy.