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27 Cards in this Set

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Plankton
All organisms that drift with the current.
Phytoplankton
plants that follow a drifting lifestyle in the upper layers of the water.
Zooplankton
much like phytoplankton, however, these are animals.

Ex. Copepods
Cyanobacteria
(blue green algae)- most primitive type of plant-like organisms, and are microscopic.
Diatoms
(single cell, asexual reproduction)a frustule (cell wall) that is most commonly made of silica.
Dinoflagellates
(single cell, photosynthetic) Some photosynthetic, some not. Most use a pair of flagella for locomotion. Responsible for red tides, common in the fall.
Phylum Protista
marine
shelled amoeba
Two types:
Foraminifera- CaCarb Shell
Radiolara- silica shell
Phylum Proifera
sponges
marine
green/orange/red
Phylum Cnidaria
Stinging tentacles, posses a true gut (like animals), but there is only one opening (mouth is anus).
Types of Cnidaria
sea anemones, jelly fish, coral
radial symmetry
one opening (anus is mouth)
Phylum Ctenophora
comb jellys
more advanced than jellys
difference: lack nematocysts (8 bands of cilia on outside to move with)
Phylum Annedlida
Segmented worms.
Polychates
Annedlida- marine worms with jaws, tentacles, and lateral extensions of the body (provide for locomotion) (clam worm)
Oligochaetes
Annedlida- cylindrical shaped worms that burrow in soils or live in shallow waters. (earthworm)
Hirudinea
Annedlida- leeches. have 2 suckers.
Phylum Anthropoda
Has hard exoskeleton made of chitin that supports and protects against desiccation. Also have joined appendages that raise the body off the ground.
Ex. Blue Crab, Crayfish, Horseshoe Crab
Phylum Mollusca
Interior head, ventral foot, dorsal mass, shell, radula. Soft bodied animals that found mainly in marine habitats.
Amphinerura
Phylum Mollusca-
Chitons
Live on rocks on by the seashore.
Radula
large ventral foot
shell is in 8 sections.
Gastropoda
Phylum Mollusca-
Snails
"stomach foot"
largest group
have prominent head with ventral foot.
Shell Spirals
Nudibranchs=marine; slugs and nudibranchs are like snails without shells
Pelecypoda
Phylum Mollusca-
Hard Shell Clams, Razor Clams, Oysters
bivalve (2 Shells)
reduced or lack of head, prominent mantle,
often have a foot for burrowing in the sediment and often move water over their gills. (incurrent and excurrent)
Cephalopoda
Phylum Mollusca- squid, octopi, nautili. Mantle covers their body. Nautili secrete shells over their body but in squids and octopi the shell is reduced to a "pen", which is sunk into the body. Funnel and tentacles act like a goot.
Scaphopoda
Phylum Mollusca- Tooth and tusk shells, live in mud, typically west coast. Inidians used them for currency.
Phylum Echinodermata
Spiny skinned
radially symetrical= adults
bilaterally symetrical= larva
no head
no segmentation
5 part body or multiples of 5
thin erpidermis
epidermis covers endoskeleton
has a spine
water vascular tube- food
Asteroidea
Phylum Echinodermata
star fish
carnivores
tube feet- pressure on prey
ventral mouth
large central disk
stout arms
Ophiuroidea
Phylum Echinodermata
brittle stars
small central disk
arms more dependant than cent. disc
tube feet gather food
Echinoidea
Phylum eCHINodermata
sea urCHINs
tube feet (movement)
Holothuroidea
Phylum Echinodermata
Sea cucumbers
burrow in sediment/eat it
detritivores (earthworm)
skeleton reduced
small spicules in leathery epidermis