Misc
Animal with a backbone
vertebrate
Phylum that exhibit 5-part radial symmetry
echinoderms
Most primitive type of fish
jawless
Type of scales found in cartilagenous fish
placoid
Scientific name for the group of mammals that have a strong fluke for propulsion, dorsal fin, little hair except on face and have layers of blubber under skin for insulation & warmth
cetaceans
Animal without a backbone
Invertebrate
Phylum characterized by their stinging cells
cnidarians
Type of fish that do not easily fossilize because the material they are made of decomposes quickly
cartilagenous
type of fin that helps to stabilize the animal & keep it from rolling over
dorsal
The type of mammals that have dense coats of fur and spend most of their lives at sea and on sea ice
when food is suspended in the water column and can be ingested by animals that typically don't move
filter feeding
Phylum characterized by jointed appendages
2 types of tail shapes that support fast speeds for long distances
crescent & forked
Type of organism that has hair & is warm-blooded
mammal
Scientific name for the group of mammals that are more agile in water, but must come on land to give birth and nurse their young
Phylum that is primarily composed of vertebrates but does include a few invertebrates
chordates
Most organisms in this phylum have a sharp, tooth-like radula for feeding
mollusks
Type of mouth that allows the fish to feed on prey above it in the water column
superior (up-pointing)
Type of mammals that are great divers, but only hold their breath for a few minutes, are very flexible due to lack of collarbone and lloat on their backs and open shells with their teeth or rocks
Sea otters
The scientific name for the group of mammals that spend their entire lives in warm, shallow, coastal waters and are vegetarians with flattened tails
Sirenians
a network of water-filled tubes that help certain organisms move
water vascular system
The class or organisms whose name means "head foot"
cephalopod
flap of flesh that covers the gills of fish
operculum
The ability to maintain body temperature separate from their environment
endothermic
Specific type of mammal that live in the Indo-Pacific, are vegetarians, and have tail flukes with pointed projections and
Dugong