(a)   : how something works, does it's job, or carries out a mission.

(a)   : the smallest living unit of life which is made of cell structures and combines together to form tissues.

(a)   : the liquid component of the circulatory system made of plasma, red blood cells, white blood cells, and platelets.

(a)   : (3 words) cell in the blood which carry oxygen, carbon dioxide, and waste to and from the heart to other parts of the body. This type of cell is shaped like a disc with a dent in the center.

(a)   : (3 words) component of the blood which fight infections. This type of cell is shaped like a large sphere with spikes.

(a)   : Component of blood which join together to clot cuts. This type of cell is shaped like a glob with long arms to grab on to each together to form clots.

(a)   : Cells in the human body which function is to move the bones to move the whole body.

(a)   : Cells in the body which attached to muscles to give the body strength and help it move.

(a)   : the term for a "nerve cell" which function is to transmit signals throughout the body

_________ _______: (2 words) A bundle of neurons which span from the brain down the trunk of the body to quickly send messages to and from the brain.

(a)