| Term | Definition |
|
cancer |
when a cell divides abnormally or mitosis is affected |
|
gamma rays, x rays, radioactive material, other |
what are 4 types of radiation |
|
radiation, chemical material, virus link, inheritance |
what are 4 causes of abnormal mitosis |
|
oncology |
study of cancer |
|
carcinogen |
causes cancer |
|
benign |
non-spreading tumor enclosed by a capsule |
|
malignant |
spreading type of cancer |
|
biopsy |
removal of tissues for operation |
|
metastasis |
cancer cells that move to other places in the body |
|
chemo, removal, radiation, early detection, family history |
treatment of cancer |
|
gamete |
sex cell |
|
zygote |
1st cell produced when sperm and egg meet |
|
diploid |
cell with normal number of chromosomes |
|
the crab |
what does cancer mean in latin |
|
chromosome |
possesses a large number if genes which are composed of DNA |
|
gene |
the smallest part of a chromosome that can determine specific characteristics |
|
46 |
how many chromosomes do humans have |
|
centromere |
holds together chromosomes after DNA replication |
|
chromatid |
the name of each strand as long as a centomere |
|
centrosome |
located in the cytoplasm of the call, near the nucleus |
|
centriole |
structure found in the centrosome that divides in 1/2 |
|
porifera |
what phylum are sponges |
|
asymetrical, marine, sissle, hermaphrodites |
what are porifera characteristics |
|
cnidaria |
what are jellyfish |
|
hollow intestines, marine, radial symmetry |
what are cnidaria characteristics |
|
platyhelminthes |
means literally flat worm |
|
bilateral symmetry, three layers, no mouths, parasitic, hermaphrodite |
characteristics of playhelminthes |
|
cestodia, trematoda, tubelaria |
three classes of platyhelminthes |
|
tapeworms |
what is an example of cestodia |
|
flukes |
example of trematoda |
|
nematods |
what are roundworms, hookworms, heartworms, pinworms examples of |
|
bilateral symmetry, mouth to anus |
characteristics of nematods |
|
ectoderm, mesoderm, endoderm |
the three layers of nematods |
|
annilid |
examples are earthworms, leaches, sandworms |
|
segmented bodies, most complex of the worms, closed circulatory system |
characteristics of annilids |
|
rotifers |
called wheel animal because of cilia |
|
mollusks |
examples include oyster, snail, slug, octopus, clam, squid |
|
soft body, exoskeleton |
characteristics of mollusk |
|
echinoderm |
sand dollers, sea urchins, starfish |
|
marine, moves by feet, radial symmetry, spiny skin |
characteristics of echinoderm |
|
arthropod |
largest phylum of invertebrates |
|
jointed body, segmented body, exoskeleton, open circulatory system, sexually reproduce |
arthropods |
|
crustacean, arachnids, myropods, insects |
4 classes of arthropods |