activate: (in biology) To turn on, as with a gene or chemical reaction.
amino acids: Simple molecules that occur naturally in plant and animal tissues and that are the basic building blocks of proteins.
antenna: (plural: antennae or antennas) In biology: Either of a pair of long, thin sensory appendages on the heads of insects, crustaceans and some other arthropods. (in physics) Devices for picking up (receiving) electromagnetic energy.
artery: Part of the body’s circulation system. There are several. Each is a major tube running between the heart and blood vessels that will move blood to all parts of the body.
behavior: The way something, often a person or other organism, acts towards others, or conducts itself.
biology: The study of living things. The scientists who study them are known as biologists.
blood vessel: A tubular structure that carries blood through the tissues and organs.
cancer: Any of more than 100 different diseases, each characterized by the rapid, uncontrolled growth of abnormal cells. The development and growth of cancers, also known as malignancies, can lead to tumors, pain and death.
carbon: A chemical element that is the physical basis of all life on Earth. It can self-bond, chemically, to form an enormous number of chemically, biologically and commercially important molecules.
carbon nanotube: A nanoscale, tube-shaped material, made from carbon that conducts heat and electricity well.
cardiologist: A doctor that specializes in the branch of medicine dealing with functions and diseases of the heart.
cell: (in biology) The smallest structural and functional unit of an organism. Typically too small to see with the unaided eye, it consists of a watery fluid surrounded by a membrane or wall. Depending on their size, animals are made of anywhere from thousands to trillions of cells.
cell membrane: A structure that separates the inside of a cell from what is outside of it. Some particles are permitted to pass through the membrane.
chain reaction:…
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