Which chemical components may be parts of a molecule of transfer RNA?
A ribose, phosphate group, uracil base

B deoxyribose, phosphate group, guanin base

C glucose/amino group, thymine base

What is the function of nucleic acids

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.