The oceanic crust is primarily made of this type of rock
Basalt
Organisms evolve soft, squishy bodies in response to this condition of the deep sea
Pressure
Cephalization is a key feature of this class of mollusks
Cephalopods
Collar cells
Lampreys and Hagfish lack this feature, putting them into the group known as "Agnatha"
Jaws
Species who live up in the open water column
Pelagic
Organisms in the deep sea depend on these large deliveries of nutrients from the surface to sustain themselves
Whale Falls
Echinoderms display this type of symmetry in their body plan
Pentamerous Radial Symmetry
Sponges have this type of symmetry
Asymmetry
Lampreys and Great White Sharks share this in common
Cartilaginous Skeleton
The section of the continental crust that extends out into the ocean
Continental Shelf
The depth of the deep sea and the turbid (murky) waters of estuaries, mean that organisms in these environments must adapt to a lack of this environmental condition
Light
Snails belong to this class of Mollusks
Gastropoda
These two body plans are displayed by Cnidarians at some point in their life cycle
Polyp and Medusa
The difference between rays and skates
Rays have stingers (venomous barbs) skates do not
An immobile benthic organism
Sessile
Due to the absence of sunlight, this process replaces photosynthesis in the deep sea
Chemosynthesis
Echinoderms of the class Asteroidea are more commonly known as
Sea Stars or Starfish
Jellyfish digest their prey in this body chamber
Gastrovascular Cavity
Sharks have this many gills located on this area of their bodies (give two anatomical terms of direction)
5-7, Lateral, and Cranial/Anterior
The 5 major ocean basins of the world
Pacific, Atlantic, Indian, Southern, Arctic
These estuarine organisms deal with large swings in salinity by actively maintaining internal salt concentrations
Osmoregulators
Many Mollusks have a radula for eating, but all Mollusks share these three traits in common
Mantel, Foot, and Calcium Carbonate Shell
True jellyfish belong to this class of Cnidarian
Scyphozoa
This camouflage pattern, where the belly is lightly colored and the back is dark colored, is displayed by many fish including sharks
Dorsal Ventral Counter Shading