what is a scientific hypothesis? what characteristics must a hypothesis have to be useful in science?

Witch type of microscope is used to view very small cell components like proteins and dna?

What are examples of the plant life and animal life that can be found in each type of terrarium

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