Fish, sharks and marine mammals are all members of this subphylum of the Kingdom Animalia.
Most primitive marine animal.
These are primary producers.
These organisms contain fatty acids and oil to help with buoyancy.
These have two flagella to help propel them through the water.
The study of seaweeds
Fish and invertebrates that live on the bottom of the ocean are known as this.
Fish and other organisms that live in the water column are known as this.
These allow phytoplankton and seaweeds to live deeper in the ocean where light is very reduced.
This is a Greek word meaning 'wandering'
In diatoms, the frustule is made of __________.
The __________ depth is the depth at which the production and consumption of oxygen by autotrophs is equal.
These are the most abundant primary consumers.
Macroalgae or seaweeds lack __________ tissue. They are thin to allow for diffuse of gases and because of the marine environment not a risk of drying out.
This material on seaweeds provides additional protection from drying out when the tide goes out.
The body of the seaweed.
The stem of seaweed.
Class of brown algae which includes kelp and rockweed.
This class of seaweed includes irish moss and norri.
Aquatic arthropods exchange gases through ______________.
___________ symmetry is found in all adult echinoderms.
An animal that retains its chordate features throughout life is the _______________.
Bony fish belong to the class _______________.
Sharks and rays belong to the class _______________.
This class includes jawless fishes such as lamprey.
Sponges obtain nutrition through _____________.
This class includes crabs, lobsters and shrimp.
This structure secretes the shell in bivalves.
This provides protection for arthropods.
This form of cnidarian that has a body form like an umbrella with tentacles hanging down.
This type of organism, like the sponge, can produce both eggs and sperm.
Another term for replacement or regrowth of parts in echinoderms is _____________.
Used for balance, steering and swimming in fishes.
Breeding in fishes
The skeleton of sharks and lampreys is made of this.
have this type of fertilization.
This structure in fish, through altering the gas pressure, allows fish to adjust depth in the water.
This adaptation in fishes allows detection movement and vibrations in the water.
Snails are members of this class of arthropods.
small photosynthetic organisms that form the base of ocean food web
photosynthetic organism like phytoplankton
microscopic phytoplankton that have a silicate cell wall - most abundant photosynthetic organism in ocean
depth of ocean with sufficient sunlight for photosynthesis to occur
means found on the bottom
means these organisms are free-floating
second most abundant primary producer in the ocean
whip-like structures that help dinoflagellates move
large blooms of dinoflagellates with harmful effects on marine life
Adaptations enabling phytoplankton to float
large cavity in center, spines, store oils and fat
brings cool nutrient water to the surface that aids in phytoplankton growth
material that makes up the cell walls of the dinoflagellates
material that makes up the cell walls of diatoms
an area of water with very low oxygen levels
a self-feeding organism; conducts photosynthesis
an organism that eats or absorbs organic material to feed
made of silky material with pores; is used to take water samples and to find phytoplankton
a determinant of species composition of phytoplankton communities; measured in PPT
parts per thousand; measures salinity
between salt- and freshwater, this one is more dense
area of the water where there is the highest amount of light
all dinoflagellates have these for movability
types of plankton that are larger than 10 microns
types of plankton that are smaller than 10 microns
size of plankton that comprise most of the biomass
type of plankton that is not motile
where diatoms store their energy
method to measure gross primary productivity using two bottles
the bottle that measures net primary production in the light-dark bottle method
bottle that measures respiration in the light-dark bottle method
gross primary production
all the respiration and photosynthesis in an ecosystem; found by adding the light and dark bottles in the light-dark bottle method