Although the terms reactant and reagent are often used interchangeably, a reactant is more specifically a substance that is consumed in the course of a chemical reaction. Solvents, although they are involved in the reaction, are usually not referred to as reactants.
Animals that live in water, usually called aquatic animals, include fish, cetaceans, certain types of turtles and other reptiles, and amphibians. There are also a number of semiaquatic animals, such as alligators, hippopotamuses and penguins, that depend on and live in water most of the time. Continue Reading.
He is a sponge because one aquatic animal is called a sea sponge. However, sea sponges do not look like a square kitchen sponge, but have a more rounded shape. Aquatic animals are animals that live in the water. They either live in fresh water, such as lakes, rivers, and ponds, or salt water, like the ocean. Most people only think of fish when asked about aquatic animals.