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Science Final 2012 !


asexual reproduction a new organism is produced from one organism
egg haploid sex cell formed in the female reproductive organs
meiosis process that produces haploid sex cells
sexual reproduction a new organism is produced in which two sex cells come together
chromosome structure in a cell's nucleus that contains hereditary material
fertilization the joining of an egg and a sperm
mitosis the process in which the nucleus divides to form two identical nuclei
sperm haploid sex cell formed in the male reproductive organs
diploid when cells have pairs of similar chromosomes
gene contains instructions for making specific proteins
mutation any permanent change in a gene or chromosome of a cell
zygote diploid cell formed when a sperm fertilizes and egg
DNA the genetic material of all organisms
haploid has half the number of chromosomes as body cells
RNA carries codes for making proteins from the nucleus to the ribosomes
allele an alternate form that a gene may have for a trait
genotype the genetic makeup of an organism
hybrid receives different genetic information for a trait from each parent
dominant covers up the other trait
recessive the trait that seems to disappear
heredity passing of traits from parent to offspring
phenotype the way an organism looks and behaves as a result of its genotype
genetic engineering changing the arrangement of DNA that makes up a gene
heterozygous an organism with two alleles for one trait that are different
homozygous an organism with two alleles for one trait that are the same
genetics the study of how traits are inherited
cartilage rubbery layer of tissue found at the ends of bones,where they form joints
involunatry muscle muscles you cannot control
melanin a pigment that protects your skin and gives it color
CNS central nervous system
PNS peripheral nervous system
neuron nerve cells
dermis middle layer of the skin
epidermis outer thinnest layer of the skin
joint any place where two or more bones come together
voluntary muscle muscle that you are able to control
ligament tough band of tissue that holds bones in place
tendon thick band of tissue that attatches bones to muscles
physical property a characteristic you can observe without changing it trying to change the composition of the substances
chemical property a characteristic that cannot be observes without altering the substance
physical change one in which the form or appearance of matter changes, but not it's composition
chemical change substances are changed into different substances
vaporization matter changes from a liquid to a gas
condensation matter changes from a gas to a liquid
sublimation solid changes to a gas
deposition gas changes into a solid
law of conservation of mass the total mass of matter is the same before and after a physical or chemical change
acid releases positively charged ions in water
aqueous a solution in which water is the solvent
solute substance that dssolves and seems to disappear into another substance
concentration describes how much solute is present in a solution compared to the amount of solvent
heterogenous mixture contains substances that are not mixed evenly
homogenous mixture another word for solution
solution homogenous mixture
neutralization acid reacts with a base and forms water and salt
saturated contains all of the solute it can hold under a given condition
solvent the substance that dissolves in the solute
precipitate a solid formed when come solutions are mixed
substance matter that has a fixed composition
solubility measurement that describes how much solute dissolves in a given amount of solvent at a given temp.
Created by: jramirez11