Cells because most living things like plant life and humans are made up of cells and animals are made up of cells too!
Chronic jetlag can cause cognitive deficits that can be permanent. This happens because the normal circadian rhythm of the body is disrupted. The endogenous system of circadian timing in the body adapts slowly. This disturbance can impair the physical and psychological health of the person.
It is called an amniotic egg.
Answer:The respiratory system helps create sound that enables humans to communicate with each another.
Explanation: