Which body system carries out the function of delivering oxygen-rich blood and nutrients to the rest of the cells in the body?

the nervous system
the respiratory system
the endocrine system
the circulatory system

Barbara is converting 78°f to degrees celsius. first, she subtracts 32 from 78. what is the next step?

Mitosis creates two identical daughter cells from one parent cell creates four nonidentical daughter cells from one parent cell is the most common type of reproduction for bacteria is the process by which male and female reproductive cells are created

What monomers build nucleic acid? how many are there?