What is the basic unit of structure and function in a living thing?
a- cell
b- a tissue
c- an organ
d- an organ system

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles