With circulation, the heart provides your body with: A. oxygen

B. nutrients

C. a way to get rid of waste

D. all of the above

D. all of the above

Explanation:

your body needs all of the above to survive and the heart provides that

characterization of nanoparticles is a critical step in nanomaterial production as it provides information of dimension, morphology, surface charge, distribution and degree of surface functionalization.

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )