living things that have millions or thrillions of cells are called​

1. living things that have millions or thrillions of cells are called​

An organism which is made of more than one cell is called a multi-cellular organism. Humans, animals and plants are some multi-cellular organisms which are made of millions to trillions of cells.

Answer:

These living things are known as multicellular organisms. Water makes up about two thirds of the weight of cells.