What substances are diffused in animals and plants

How can you approximate the number of calories required to keep you in energy balance?

Match with o for organic and i for inorganic for each compound

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers