Question

1. describe: what are the levels of organization in multicellular organisms? (list and explain what they are made up of)

list the level of organization: describe the level
1.
2.
3.
4.
5.

Explanation:

Cells are the basic unit. Tissues are groups of similar cells. Organs are made of different tissues. Organ - systems are groups of organs working together. Organisms are the complete living entity.

Answer:

1. Cells: The basic structural and functional units of life, made up of organelles and surrounded by a cell - membrane.
2. Tissues: Groups of similar cells that work together to perform a specific function. For example, muscle tissue is made of muscle cells.
3. Organs: Composed of different types of tissues that work together to perform a particular function. The heart is an organ made of muscle, connective, and nervous tissues.
4. Organ - systems: Groups of organs that work together to perform a major body function. The circulatory system includes the heart, blood vessels, and blood.
5. Organisms: A complete living being that can function independently, made up of various organ - systems.