Marine Science Semester Final Review UPDATED ACTUAL Exam Questions and CORRECT Answers

Marine Science Semester Final Review
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Anal Fin - CORRECT ANSWER - Fin located near the anal opening; used for balance and
steering


Caudal or Tail Fin - CORRECT ANSWER - Fin at the tail of a fish; used for propulsion



Dorsal Fin - CORRECT ANSWER - Backside (top) fin on a fish; used for balance and
protection


Gills - CORRECT ANSWER - Organ used to obtain oxygen from the water and rid carbon
dioxide


Lateral Line - CORRECT ANSWER - Organ on side of fish which senses vibrations and
changes in water pressure


Nares - CORRECT ANSWER - Organ for sense of smell; similar to nostrils



Pectoral Fin - CORRECT ANSWER - Fins on the sides; used for balance and assist
turning


Scales - CORRECT ANSWER - Protective cover on a fish



Vertebrate - CORRECT ANSWER - An organism with a backbone or spine



Swim bladder - CORRECT ANSWER - a gas filled organ that allows a bony fish to move
up and down in water

,Liver - CORRECT ANSWER - assists in digestion and produces bile which breaks down
fats


Gall Bladder - CORRECT ANSWER - Small sac beside the liver that stores bile



Heart - CORRECT ANSWER - two chambered; Pumps blood



Stomach - CORRECT ANSWER - Most of the digestion takes place



Intestine - CORRECT ANSWER - Absorb nutrients into the blood



Eyes - CORRECT ANSWER - Retina have nod cells and cone cells (for scotopic and
photopic vision)


Operculum or gill cover - CORRECT ANSWER - The flap of skin covering the gills



Pelvic fin - CORRECT ANSWER - pairs on ventral side of fish aids in stabilizing the fish



Meaning of Porifera - CORRECT ANSWER - "Pore Bearing"



Meaning of Cephalapod - CORRECT ANSWER - "Head Foot"



Meaning of Arthropod - CORRECT ANSWER - "Jointed foot"



Meaning of Cnidaria - CORRECT ANSWER - "Stinging Cells"



Meaning of Gastropoda - CORRECT ANSWER - "Stomach Foot"

,Meaning of Echinodermata - CORRECT ANSWER - "Spiny Skin"



Meaning of Bivalve - CORRECT ANSWER - "Two shelled"



Phylum Arthropoda examples - CORRECT ANSWER - Crustaceans - crabs, barnacles,
shrimp, lobster


Common features of Phylum Echinoderm - CORRECT ANSWER - Water vascular system
and rows of tube feet


Filter feeders - CORRECT ANSWER - Aquatic animals that strain floating plants and
animals from water


Phylum Mollusca examples - CORRECT ANSWER - Ceplalopods (octopus), Bivalves
(clams),
Gastropods (snails)


Sessile - CORRECT ANSWER - Fixed/attached to one place, can't move



Phylum Cnidaria examples - CORRECT ANSWER - Corals, sea anemones, jellyfish



Cilia - CORRECT ANSWER - Hair-like structures, Used for movement of comb jellies



Nematocysts - CORRECT ANSWER - Stinging cells on Cnidarians used for defense and
to capture prey


Phylum Porifera examples - CORRECT ANSWER - sponges

, Common features of Phylum Mollusca - CORRECT ANSWER - Foot, radula, mantle



Starfish transport nutrients through a ... - CORRECT ANSWER - Ringed water vascular
system


Bioluminescence - CORRECT ANSWER - Light reaction produced by some animals, e.g.
comb jellies


Phylum Echinoderm examples - CORRECT ANSWER - Sea urchins, sea cucumber, sea
star


Type of symmetry for mollusks and arthropods - CORRECT ANSWER - Bilatteral



Phylum Ctenephora examples - CORRECT ANSWER - comb jellies



Type of symmetry for Cnidaria, Ctenephora nd Echinoderm - CORRECT ANSWER -
Radial


Common features of Phylum Arthropoda - CORRECT ANSWER - Segmented bodies,
Jointed appendages, exoskeleton


# types of body shapes for Marine worms - CORRECT ANSWER - Flat, round and
segmented


Phylum Porifera - CORRECT ANSWER - porous body; Choanocytes (collar cells) are
characteristic cell type; spicules and spongin give support


Phylum Cnidaria - CORRECT ANSWER - animals with stinging cells (nematocysts);
Radial Symmetry