What is true of carbon atoms?
a. they are not found in living organisms
b. they have five valence electrons
c. they can form up to four covalent bonds.
d. they do not bond with other elements.

Which of the following are the functions of the skeletal system? blood cell production in soft marrow tissues and mineral reserves largest organ of the body for defense and support vitamin d production and pumping blood through vessels voluntary movement and contractile movement

Por qué crees que los huevos con cáscara se llaman amnióticos?

This is the nitrogenous base only found in rna