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Science Final
Vocab
16
Science
7th Grade
05/04/2012

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Cards

Term
Skeletal system
Definition
all the bones in the body
Term
Periosteum
Definition
tough tight fitting membrane
Term
Cartilage
Definition
thick smooth flexible and slippery tissue that covers the end of bones, makes movement easier by reducing friction, and absorbs shock
Term
Joint
Definition
any and place where two or more bones come together can be movable or immovable
Term
Ligament
Definition
tough tissue that holds the bones together at the joint.
Term
Muscle
Definition
an organ that can contract, relax, and provides the force to move your body.
Term
Voluntary muscle
Definition
muscles that you are able to control.
Term
Involuntary muscle
Definition
muscles that you can't control consciously.
Term
Tendons
Definition
thick bands of tissue that attach to bones.
Term
Skeletal muscles
Definition
muscles that moves bones.
Term
Nitrogen-fixing bacteria
Definition
Bacteria that convert nitrogen in the air into forms thaat can be used by plants and animals
Term
Pathogen
Definition
disease-producing organism
Term
Toxins
Definition
poisonous substance prodused by some pathogens
Term
Endosphores
Definition
Thick-walled protective struture produced by some bacteria when conditions are unfavorable for survivial
Term
Pasteurization
Definition
Process in which a liquid is heated to a temperature that kills most bacteria
Term
Vertebrae
Definition
Backbones that are joined by flexible cartilage and protest a vertebrate's spinal nerve cord
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