Life Science - Chapter 12
Terms in this set (31)
Amount of energy needed to raise temperature 1 gram of water 1 degree C
A type of protein that speeds up a chemical reaction in a living thing
A muscular tube that connects the mouth to the stomach.
Involuntary waves of muscle contraction that keep food moving along in one direction through the digestive system.
Tiny finger-shaped structures that cover the inner surface of the small intestine and provide a large surface area through which digested food is absorbed
Transports oxygen, waste, nutrients, hormones, heat, etc... around the body
upper chamber of the heart
lower chamber of the heart
A flap of tissue in the heart or a vein that prevents blood from flowing backward.
A blood vessel that carries blood away from the heart
Largest artery in the body
A tiny blood vessel where substances are exchanged between the blood and the body cells.
A blood vessel that carries blood back to the heart.
Oxygen carrying pigment in red blood cells
Allows air to pass to and from lungs
Hairlike projections that extend from the plasma membrane and are used for locomotion
The passages that direct air into the lungs
Main organs of the respiratory system
air sacs in the lungs
Large, flat muscle at the bottom of the chest cavity that helps with breathing
voice box; passageway for air moving from pharynx to trachea; contains vocal cords
folds of tissue within larynx that vibrate and produce sounds
Process by which metabolic wastes are eliminated from the body
A chemical that comes from the breakdown of proteins
Fluid wastes removed from the body by the kidneys
Filters waste from the blood like urea, water, salt and proteins.
A duct leading from the kidney to the urinary bladder.
tube leading from the urinary bladder to the outside of the body
functional unit of the kidney
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