Bio 121 Lab 5,6,7 Flashcards
RO Picea
Phylum Coniferophyta
“Spruce tree”
(Gymnosperm- naked seed)
RO Lilium
Phylum Anthophyta
“Prairie lily”
(Angiosperm- enclosed sperm)
RO Grantia
Phylum Poriphera
“Sponges”
(Parazoa- no true tissue)
RO Hydra
Phylum Cnidaria
“Water serpent”
(Eumetazoa- distinct tissue)
Diploblastic acoelomate
RO Dugesia
Phylum Platyheminthes
“Flatworms”
(Eumetazoa- distinct tissue)
Triploblastic acoelomate
RO Turbatrix
Phylum Nematoda “Vinegar eel worm” (Roundworms) (Eumetazoa- distinct tissue) Triploblastic pseudocoelomate
RO Lumbricus
Phylum Anneldia
“Earth worm”
(Segmented worm)
RO Pomacea
Phylum Mollusca
“Apple snail/mystery snail”
RO Cambarus
Phylum Arthropoda
“Crayfish”
Parazoa
No true tissue
Ex. Grantia (sponges)
Eumetazoa
Distinct tissue layers
Ex. Hydra, Dugesia, Turbatrix
Polyp
Sessile form Solitary or colonial Body column Crown tentacles Basal disc attach to surface
Medusa
Motile form
Upside down polyp
Free swimming
Tentacles hang under dome body
Gastrovascular cavity
One mouth/anus
Ex. Hydra, Dugesia
Tubular gut
Separate mouth and anus
Ex. Turbatrix, lumbricus, pomacea, cambarus
Filter feeding
Creates current to stir up particles
Ex. Grantia
Detrivores
Recycle nutrients to ecosystem
Ex. Cambarus
Molting
Shedding of chitinous exoskeleton
Ex. Arthropods
Cephalization
Concentration of nerve structures at the head
Diploblastic aceolomate
2 germ layers
Ex. Hydra
Triploblastic aceolomate
3 germ layers
Ex. Dugesia
Triploblastic pseudoceolomate
3 germ layers, gap between endoderm and mesoderm
Ex. Turbatrix
Triploblastic coelomate
3 germ layers
Fluid filled cavity within mesoderm
Ex. Lumbricus, pomacea, Cambarus
Coelom
Fluid filled body cavity within mesoderm
Monocots
1 cotydelon 3n flower parts Parallel veins Scattered vascular tissue Fibrous roots
Dicots
2 cotydelons Branched veins 4n 5n flower parts Ring vascular tissue Tap roots