Question

describing the different levels of organization
complete the sentences to describe the different levels of organization in living things.
a/an is a group of organs that work together to perform a common function.
a/an is a group of tissues that work together to perform a common function.
a/an is a group of organ systems that work together to perform a common function.
a/an is a basic unit of structure and function of all living things.
a/an is a group of cells that work together to perform a common function.

Explanation:

In biology, the levels of organization in living things follow a hierarchical structure. An organ system is made of organs working together, an organ is made of tissues, an organism is composed of organ - systems, a cell is the basic unit, and a tissue is a group of cells working together.

Answer:

1. Organ system
2. Organ
3. Organism
4. Cell
5. Tissue