Marine Biology Exam 2 Questions and Answers | Latest 2026 Update
Q: Which of the following is not correctly paired?
Answer:
phylum Arthropoda- sea urchins Deposit-feeding animals feed on: Organic matter
that settles on the bottom Polychaete worms show: segmentation All molluscs: have
a soft body covered by a mantle Which of the following are not correctly paired?
class Gastropoda- mussels The radula and crystalline style of molluscs are part of
the: digestive system Nudibranchs are members of which group of molluscs?
gastropods One distinctive feature of arthropods: jointed legs One distinctive feature
of all echinoderms: water vascular system One of the following is not a characteristic
of all chordates bilateral symmetry The group of vertebrates containing the largest
number of species: fishes An example of a jawless fish: hagfish The whale shark
feeds on: plankton
, Q: The caudal fins of sharks are located on: the tail end Demersal fishes: live on the
bottom Rays and skates typically feed on: small animals that live on the bottom
One of the following characterizes bony fishes in general: presence of an
operculum One particular feature found in bony fishes but absent in
cartilaginous fishes: swim bladder When a particular color pattern allows
animals like fishes to blend with their surroundings: cryptic coloration In many
sharks, extra buoyancy is provided by the: Liver The gill rakers are involved in
which of the following?
Answer:
filtering food filter feeding fishes Basking sharks feed on: plankton The heart of all
fishes has how many chambers? Two Spiracles are involved in: allowing fishes like
rays to take in water even when the mouth is buried in sediment. The function of
arteries in fishes is to: carry oxygenated blood from the heart to the rest of the body
Q: Oxygen is carried in the blood of fishes by what?
Answer:
Hemoglobin The counter-current system of flow is involved in: increasing the
amount of oxygen that diffuses into the blood. The purpose of the lateral line in
fishes: detecting vibrations The necessitating membrane of sharks: moves across the
eye Anadromous fishes migrate: from the sea to reproduce in freshwater An example
of a catadromous fish: Atlantic eel Prokaryotes include only the following: Bacteria
and archaea Which of the following is not true of decay bacteria? it does NOT carry
out photosynthesis Bacteria that make their own organic compounds by obtaining
energy from chemical compounds and not directly from light are known as:
Chemosynthetic Organisms having a shell made of silica (SiO2) are called: diatoms
Reproduction in diatoms is: asexual and sexual Red tides are caused mostly by:
dinoflagellates
Q: Which of the following is not correctly paired?
Answer:
phylum Arthropoda- sea urchins Deposit-feeding animals feed on: Organic matter
that settles on the bottom Polychaete worms show: segmentation All molluscs: have
a soft body covered by a mantle Which of the following are not correctly paired?
class Gastropoda- mussels The radula and crystalline style of molluscs are part of
the: digestive system Nudibranchs are members of which group of molluscs?
gastropods One distinctive feature of arthropods: jointed legs One distinctive feature
of all echinoderms: water vascular system One of the following is not a characteristic
of all chordates bilateral symmetry The group of vertebrates containing the largest
number of species: fishes An example of a jawless fish: hagfish The whale shark
feeds on: plankton
, Q: The caudal fins of sharks are located on: the tail end Demersal fishes: live on the
bottom Rays and skates typically feed on: small animals that live on the bottom
One of the following characterizes bony fishes in general: presence of an
operculum One particular feature found in bony fishes but absent in
cartilaginous fishes: swim bladder When a particular color pattern allows
animals like fishes to blend with their surroundings: cryptic coloration In many
sharks, extra buoyancy is provided by the: Liver The gill rakers are involved in
which of the following?
Answer:
filtering food filter feeding fishes Basking sharks feed on: plankton The heart of all
fishes has how many chambers? Two Spiracles are involved in: allowing fishes like
rays to take in water even when the mouth is buried in sediment. The function of
arteries in fishes is to: carry oxygenated blood from the heart to the rest of the body
Q: Oxygen is carried in the blood of fishes by what?
Answer:
Hemoglobin The counter-current system of flow is involved in: increasing the
amount of oxygen that diffuses into the blood. The purpose of the lateral line in
fishes: detecting vibrations The necessitating membrane of sharks: moves across the
eye Anadromous fishes migrate: from the sea to reproduce in freshwater An example
of a catadromous fish: Atlantic eel Prokaryotes include only the following: Bacteria
and archaea Which of the following is not true of decay bacteria? it does NOT carry
out photosynthesis Bacteria that make their own organic compounds by obtaining
energy from chemical compounds and not directly from light are known as:
Chemosynthetic Organisms having a shell made of silica (SiO2) are called: diatoms
Reproduction in diatoms is: asexual and sexual Red tides are caused mostly by:
dinoflagellates
