Complete the space with the correct level of organization: cells, _________, organs, organ systems, organism.
tissues
15
A tiny unit that can do the basic things of life. It is the basic unit of life. All living things are made of these.
cells
20
A group of like cells. A group of cells that work together to do a certain job.
Tissue
20
A group of tissues in a plant or animal. The tissues work together. They have a certain job.
Organ
20
A group of organs. The organs work together. They help the body meet its needs for energy and materials.
Organ system
20
This tissue functions as a boundary. It covers all of the inner and outer surfaces of your body. This tissue covers each of your internal organs.
Epithelial tissue
25
This tissue functions as a messaging system. Cells in this tissue carry electrical impulses between your brain and the various parts of your body. This all happens in response to changing conditions.
Nerve tissue
25
This tissue functions in movement. Movement results when cells contract and then relax. In some cases, you control the movement, such as throwing a ball. In other cases, the movement occurs without conscious control.
Muscle tissue
25
This tissue functions to hold parts of the body together. This tissue provides support, protection, strength, padding, and insulation. Tendons and ligaments are examples; they hold bones and muscles together.
Connective tissue
25
The way your body works to maintain stable conditions. Your body regulates its temperature and the amount of sugar in your blood. The body needs a stable internal environment for health and life.
Homeostasis
25
What level of organization does the image represent?
cell
10
What level of organization does the image represent?
tissue
10
What level of organization does the image represent?
organ
10
What level of organization does the image represent?