Ugh help

Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast

If an organ has six haploid chromosomes, how many chromosomes are present. 6 12

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping