Levels of Organization
The smallest unit of life.
What is a cell?
What is the main function of the heart?
to pump blood throughout the body
What is the primary organ of the respiratory system?
lungs
Name the level of organization that includes groups of similar cells working together.
What is tissue?
Name the vessels that carry blood away from the heart.
arteries
What gas do we inhale that is essential for cellular respiration?
oxygen
What is the term for a group of tissues that work together to perform a specific function?
organ
What type of blood cells are responsible for transporting oxygen?
red blood cells
What is the process by which oxygen and carbon dioxide are exchanged in the lungs?
gas exchange
What do we call a group of organs that work together to perform a specific function?
organ system
How does the cardiovascular system help maintain homeostasis?
By regulating blood flow and temperature.
How do the respiratory and cardiovascular systems work together during exercise?
The respiratory system increases oxygen intake while the cardiovascular system increases blood flow to deliver oxygen to muscles
Name an example of a specific cell.
neuron, stem cells, bone cells, red blood cells, white blood cells
Explain how the cardiovascular system interacts with the respiratory system.
The cardiovascular system transports oxygen from the lungs to the body and carries carbon dioxide from the body back to the lungs.
Describe how the respiratory system helps remove waste products from the body.
It expels carbon dioxide, a waste product of cellular respiration, when we exhale.