Which of these is not true of cells? a. they are much like empty rooms. b. they were first discovered in the 1600sc. they can be found in pond waterd. they contain a huge array of working parts

The answer is a. they are much like empty rooms.

Explanation:

Cells are pretty much the opposite of empty rooms. There are many organelles and processes happening in them, so there's no space for empty rooms. Even when there are spaces, which anyway would be full of liquid, these spaces have a purpose.

it has one origin of replication, but it proceeds in two directions - d)

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.