By: Chase Brosel
BODY ORGANIZATION FOR SIMPLEST TO MOST COMPLEX
Cell- Are the basic unit of structure and function in living things.
Tissues- Made up of cells that are similar in structure and function and which work together to perform a activity. Humans have four tissues: connective, muscle, and nerve.Organs- Made up of tissues that work together to perform a specific activity, heart, brain, skin.
Organ Systems- Groups of two or more tissues that work together to perform a function for the organism. The Human body has 11 organ systems - circulatory, digestive, endocrine, excretory, immune, integumentary, muscular, nervous, reproductive, respiratory, and skeletal.