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26 Cards in this Set

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collection of cells that are permanently associated but in which little or no intergration of cell activites occrs
colonial organism
a temporary collection of cells that comes together for a period of time and then seperates
aggregation
an organism that consists of many cells that re permanently associated and intergrated in their activities
multicellular organism
process in which the cells of a multicellular individual become specialized during development
differentiation
a member of the kingdom protista
protist
slender filament tha ti part of the body of a multicellular fungus
hypha
in fungi, a wall-like division between cells within a hypha; wall that internally divides body segments in annelid; thick wall that divides the heart's atrium or ventricle into right left halves
septum
group of cells with a common structure and function
tissue
group of organs that function together to carry out a major activity of the body
organ system
type of plant tissue that contains specialized cells tha distribute water and other nutrients within the body of a plant
vascular tissue
animal that lacks a backbone
invertebrate
animal with a backbone
vertebrate
historic term for a heterotrophic protist
protozoan
historical term for photosynthetic prootests---not eaccepted by all scientists
alga
diploid zygote that results from the pairing of gametes of opposite mating types
zygospore
life cycle in which a haploid gamete-producing individual alternates iwth a diploid spore-producing individual
alternation of generations
spore capsule in which haploid spores are produced by meiosis
sporangium
a protist that moves using flexible cytoplasmic extensions
amoeba
extension of cytoplasm of the amoeba tha tenables it to move
pseudopodium
photosynthetic unicellular protist of the phylum Bacillariophyta
diatom
unicellular, heterotrophic portist th atis a member of the phylum Zoomastigina
Zoomastigot
member of the phylum Euglenophyta
Euglenoid
in cells, one hairlike structure in tightly packed rows tha are used for movement
cilium
protist of the phylum Myxomycota; characterized yb multinucleate amoeboid appearance
plasmoid
one of three stages of Plasmodium tha t lives in mosquitoes and is injected into humans
sporozoite
stage of the life cycle of the portist Plasmodium in which the protist divides rapidly in red blook cells and produces many more merozoites
merozoite