Answer:
Organ system — a group of organs that contribute to specific functions within the body. Examples include:
Gastrointestinal system
Nervous system
Organ — a group of tissues precisely arranged so that they can work together to perform specific functions. Examples include:
Liver
Brain
Tissue — a group of cells with similar structure and function. There are only four types of tissues:
Epithelial
Connective
Muscle
Nerve
Cell — the smallest living units in the body. Examples include:
Hepatocyte
Neuron
Chemicals — atoms or molecules that are the building blocks of all matter. Examples include:
Oxygen
Protein
Recovering from an preventable injury or disease
Answer:
i think its all of the above
Explanation:
Answer:
The oxygen is taken to the heart where it's distributed to the entire body
Hemoglobin drops off oxygen and picks up carbon dioxide.