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Contains the green pigment called chlorophyll, the food-making site for a plant, and helps trap the sun's energy.
Outer layer, boundary of all cells, protects and allows material in and out of the cell. It is also known as being selectively permeable.
powerhouse of the cell, produces energy (ATP) from oxygen and sugar(Cellular respiration)
tough, flexible connective tissue that supports, gives shape and prevents rubbing to the body parts
Physical Action of breaking down food into small pieces...happens in the mouth and stomach
Most Digestion takes place here. Chemical Digestion. Contains villi and absorbs nutrients.
circulation of blood
right atruim--->valve--->right ventricle--->pumonary artery--->lungs--->pulmonary vein--->left atruim--->valve--->left ventricle--->valve---->aorta--->rest of the body--->vena cava--->right atruim
part of the brain that controls the senses, though, and conscious activities. Right side=Artistic. Left side=logic and math.
base of brainstem, controls involuntary body processes(blinking, heartbeat, breathing, ect.)
change in a DNA sequence that affects genetic information that causes a new trait to be inherited
a natural process resulting in the evolution of organisms best adapted to the environment
survival of the fittest
Group 1, 1 electron in outer level, very reactive, soft, silver, shiny, low density; Lithium, Sodium, Potassium, Rubidium, Cesium, Francium
alkaline earth metals
metallic elements in group 2 of the periodic table which are harder than the alkali metals and are also less reactive
Groups 3-12, 1-2 electrons in the outer energy level, less reactive than alsali-earth metals, shiny, good conductor of thermal energy and electrical current, high density
group 17; contains nonmetals; 7 electrons in its outermost energy level; very reactive; poor conductors of electric current; never in its uncombined form in nature; combine with most metals to form salts
one of the elements of group 18 of the periodic table(helium, neon,argon, krypton, xenon, and radon); noble gases are unreactive
mass of an object times its velocity, determines how difficult it is to stop the objects motion
the tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force
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