Marine Biology Final Exam Review Questions and Answers | Latest
2026 Update
Q: Ovoparity External embryonic development by egg, with nutrient uptake via a
yolk.
Answer:
Ovoviparity Fertilized eggs are retained within mother to complete development, but
all
nourishment gained from yolk sac
Coral reef Diverse and productive environment named for the coral animals that
make up its
primary structure, exist thanks to algae living in it, very delicate balance of salinity
and
temperature in order to exist, limestone skeleton (calcium carbonate)
Nutrient rich Deeper, generally colder waters with lots to offer an organism
Tropical water Water between 20-40 degrees of equator
Bioluminescence The production of light by means of a chemical reaction in an
organism
Mudflat A muddy bottom that is exposed at low tide
, Q: Delta A low triangular area where a river divides before entering a larger body
of water, low
Answer:
salinity
Channel A deep and relatively narrow body of water (as in a river or a harbor or a
strait
linking two larger bodies) that allows the best passage for vessels
Salt marsh Temperate-zone estuary dominated by salt-tolerant grasses above the
low-tide
line and by seagrasses under water
Estuary The wide part of a river where it nears the sea
Species diversity The number and relative abundance of species in a biological
community
Suspended particles 0.1 micrometers to 100 micrometers in diameter. Too small to be
removed by sedimentation or filtration.
Osmoregulator An organism that regulates its internal concentration of salts.
Osmoconformer An organism that allows its internal concentration of salts to change
in
order to match the external concentration of salts in the surrounding water
Mangal A tropical community of mangrove plants and associated organisms.
Toxin A poisonous substance produced during the metabolism and growth of certain
microorganisms and some higher plant and animal species.
Plankton net A net with a fine mesh that catches plankton.
2026 Update
Q: Ovoparity External embryonic development by egg, with nutrient uptake via a
yolk.
Answer:
Ovoviparity Fertilized eggs are retained within mother to complete development, but
all
nourishment gained from yolk sac
Coral reef Diverse and productive environment named for the coral animals that
make up its
primary structure, exist thanks to algae living in it, very delicate balance of salinity
and
temperature in order to exist, limestone skeleton (calcium carbonate)
Nutrient rich Deeper, generally colder waters with lots to offer an organism
Tropical water Water between 20-40 degrees of equator
Bioluminescence The production of light by means of a chemical reaction in an
organism
Mudflat A muddy bottom that is exposed at low tide
, Q: Delta A low triangular area where a river divides before entering a larger body
of water, low
Answer:
salinity
Channel A deep and relatively narrow body of water (as in a river or a harbor or a
strait
linking two larger bodies) that allows the best passage for vessels
Salt marsh Temperate-zone estuary dominated by salt-tolerant grasses above the
low-tide
line and by seagrasses under water
Estuary The wide part of a river where it nears the sea
Species diversity The number and relative abundance of species in a biological
community
Suspended particles 0.1 micrometers to 100 micrometers in diameter. Too small to be
removed by sedimentation or filtration.
Osmoregulator An organism that regulates its internal concentration of salts.
Osmoconformer An organism that allows its internal concentration of salts to change
in
order to match the external concentration of salts in the surrounding water
Mangal A tropical community of mangrove plants and associated organisms.
Toxin A poisonous substance produced during the metabolism and growth of certain
microorganisms and some higher plant and animal species.
Plankton net A net with a fine mesh that catches plankton.
