AP BIOLOGY

Detailed explanation-1: -All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures. In multicellular organisms, similar cells form tissues.

Detailed explanation-2: -All living things are made of one or more cells. Organisms that are made of one cell are called unicellular and organisms that are made of multiple cells are called multicellular. Although unicellular organisms are only made of single cells, they are still incredibly complex.

Detailed explanation-3: -Cells are the basic structures of all living organisms. Cells provide structure for the body, take in nutrients from food and carry out important functions.

Detailed explanation-4: -All living things, or organisms, are made up of at least one cell. Some organisms, such as amoebas, are made up of only one cell and are therefore called unicellular organisms. On the other hand, multicellular organisms, such as humans, are composed of more than one cell.