MCAT

mutation

Bunsen burner

gall bladder

set of characteristics passed on with the X chromosome

type of asexual reproduction which leads to splitting of parental cells in two equal parts

arrangement in which two dissimilar organisms live together in what is usually a mutually beneficial manner

fish having a bony rather than a cartilaginous skeleton

male gamete (sex cell)

a chemical used to kill insects

part of the brain found at the base that is made up of the pons, medulla and midbrain in man

method of communication

system of blood vessels starting and ending in capillaries

inherited disease due to an extra chromosome 21; also known as 'trisomy 21'

salt or ester of pyruvic acid being an organic liquid and an intermediate of carbohydrate metabolism

passage of urine from the bladder outside of the body

the sudden; involuntary contraction of a muscle

pH at which the electrolyte concentration of an amphoteric substance such as protein is electrically zero

movement

a disease antigen that stimulates the body to produce an antibody reaction but is not strong enough to produce the disease's harmful effects

one or more orbitals in the electron shell of an atom

an unstable; reactive gas which has oxidative properties