The portion of the electromagnetic spectrum that plays a role in the activation of vitamin d is visible light ultraviolet light infrared radiation microwaves

Which class of molecules contains the amino group, nh2 (a) sugars (b) water (c) proteins (d) hydrocarbons

The deserts of the sahara and australia are associated with

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.