A system of organs that are functioning together to perform a specific job is called:

The basic unit of structure and function in any living thing is:

The heart is an example of different tissues working together to perform a specific job. This is an example of a(n):

A living thing composed of different organ systems working together is called a(n)

Which level of organization should letter C represent?

Which level of organization should letter A represent?

Which level of organization should letter D represent?

Which level of organization should letter B represent?

Which level of organization should letter E represent?

You are studying an organism under the microscope. You notice that it has many cells working together to digest food that it just consumed. Is this organism multicellular or unicellular?

What is the smallest part of a living thing that can carry out processes of life?