Level 1
The organ system includes the hair, nails, and skin.
Integumentary system
The organ system includes the mouth, stomach, and small and large intestines.
Digestive system
The organ system including the heart, arteries, capillaries and veins.
Cardiovascular system
The organ system includes the nasal cavity, trachea, and lungs.
Respiratory system
The organ system includes hormone-secreting glands.
Endocrine system
The lungs, stomach, and brain are examples of what level of organization?
Organ level
It contains an oxidative enzyme used for oxidating hydrogen peroxide.
Peroxisome
This level of the organization includes multiple organs that combine to perform their functions together.
Organ system
These are the 'organs' of a cell.
Organelle
Muscles or glands that cause responses that alter internal environment conditions.
Effectors
The most abundant substance in the body.
Water
The substances that provide necessary chemicals to organisms.
Food
The three subatomic particles are found within an atom.
Electrons, protons and neutrons.
The breakdown of food into simpler forms that can be absorbed.
Digestion
These provide information about specific internal conditions.
Receptors
These are large molecules, made up of a combination of multiple smaller molecules.
Macromolecule
An application of force on an object.
Pressure
The mechanism that returns the internal environment back to normal conditions.
Negative feedback
A reaction to a change inside or outside of the body.
Responsiveness or Adaptability
The place where a deviation from normal set points is detected.
Control center
The gas that makes up 1/5 of the atmosphere, necessary in our bodies to release energy from nutrients.
Oxygen
A substance important for transporting substances in organisms as well as regulating body temperature.
Water
It is where energy comes from in the by-product of cellular respiration.
Bonding of Phosphate group
The removal of waste produced by metabolic reactions.
Excretion
The control center regulates internal body temperature in humans.
Hypothalamus