OCE ch 14 Questions with Correct Answers (Grade A+)
Question 1: The caudal fin of fast-cruising fish such as tuna is:
Answer: lunate
Question 2: The shape of the caudal fin of a shark is referred to as:
Answer: heterocercal
Question 3: Which set of fins is used for turning and braking?
Answer: pectoral and pelvic
Question 4: What type of caudal fin is characteristic of fast-swimming fish that migrate long distances?
Answer: lunate
Question 5: Which of the following fins is featured in the image? Underwater photograph of the top
part of a shark.
Answer: dorsal
Question 6: Judge the following sentence according to the criteria given below: Many microscopic
zooplankton are omnivores BECAUSE they eat other zooplankton in addition to phytoplankton.
Answer: The assertion and the reason are both correct, and the reason is valid.
Question 7: Which of the following types of caudal fins is asymmetrical, with most of their mass and
surface area in the upper lobe?
Answer: heterocercal
Question 8: A squids mouthpiece resembles a ________.
Answer: parrot's beak
Question 9: Which of the following are armed with nematocysts containing a painful neurotoxin?
Answer: cnidarians
Question 10: Which of the following have a hard exoskeleton and a segmented body with jointed legs,
forked tails and distinct antennae?
Answer: copepods
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, Question 11: The oxygen-storing compound in the red muscle tissue of fishes is called _________.
Answer: myoglobin
Question 12: Which of the following fast-swimming fish has the lowest body temperature?
Answer: mackerel
Question 13: Red muscle tissue in fish supplies a much ________ amount of oxygen and supports a
much ________ metabolic rate than white tissue.
Answer: greater, higher
Question 14: Of the following statements about the muscle tissue of cruising and lunging fish, which
is/are true? Choose all that apply.
Answer: -Cruisers have a mix of red and white muscle tissue.. -Red muscle tissue supports high metabolic
rates and is good for endurance.
Question 15: Of the following statements about bioluminescence in deep-water nekton, which is/are
true? Choose all that apply.
Answer: -Bioluminescence can be used to attract a mate. -The majority of deep-water nekton can
bioluminesce. -Bioluminescent light can be used to stake out territory. -Bioluminescent light can attract and
lure prey to a predator. -A flash of bioluminescent light can temporarily blind a predator, allowing the prey
to escape.
Question 16: Because of the scarcity of food in the deep-sea environment, many organisms rely on
_________ as their principal source of food.
Answer: detritus
Question 17: An example of a "cruiser" is a:
Answer: tuna
Question 18: Which of the following is not one of the reasons bioluminescence is employed by deep-sea
animals?
Answer: warning coloration
Question 19: Identify the adaptation that allows deep-sea fishes to capture prey without exerting much
energy.
Answer: sensitive lateral lines
Page 2
Question 1: The caudal fin of fast-cruising fish such as tuna is:
Answer: lunate
Question 2: The shape of the caudal fin of a shark is referred to as:
Answer: heterocercal
Question 3: Which set of fins is used for turning and braking?
Answer: pectoral and pelvic
Question 4: What type of caudal fin is characteristic of fast-swimming fish that migrate long distances?
Answer: lunate
Question 5: Which of the following fins is featured in the image? Underwater photograph of the top
part of a shark.
Answer: dorsal
Question 6: Judge the following sentence according to the criteria given below: Many microscopic
zooplankton are omnivores BECAUSE they eat other zooplankton in addition to phytoplankton.
Answer: The assertion and the reason are both correct, and the reason is valid.
Question 7: Which of the following types of caudal fins is asymmetrical, with most of their mass and
surface area in the upper lobe?
Answer: heterocercal
Question 8: A squids mouthpiece resembles a ________.
Answer: parrot's beak
Question 9: Which of the following are armed with nematocysts containing a painful neurotoxin?
Answer: cnidarians
Question 10: Which of the following have a hard exoskeleton and a segmented body with jointed legs,
forked tails and distinct antennae?
Answer: copepods
Page 1
, Question 11: The oxygen-storing compound in the red muscle tissue of fishes is called _________.
Answer: myoglobin
Question 12: Which of the following fast-swimming fish has the lowest body temperature?
Answer: mackerel
Question 13: Red muscle tissue in fish supplies a much ________ amount of oxygen and supports a
much ________ metabolic rate than white tissue.
Answer: greater, higher
Question 14: Of the following statements about the muscle tissue of cruising and lunging fish, which
is/are true? Choose all that apply.
Answer: -Cruisers have a mix of red and white muscle tissue.. -Red muscle tissue supports high metabolic
rates and is good for endurance.
Question 15: Of the following statements about bioluminescence in deep-water nekton, which is/are
true? Choose all that apply.
Answer: -Bioluminescence can be used to attract a mate. -The majority of deep-water nekton can
bioluminesce. -Bioluminescent light can be used to stake out territory. -Bioluminescent light can attract and
lure prey to a predator. -A flash of bioluminescent light can temporarily blind a predator, allowing the prey
to escape.
Question 16: Because of the scarcity of food in the deep-sea environment, many organisms rely on
_________ as their principal source of food.
Answer: detritus
Question 17: An example of a "cruiser" is a:
Answer: tuna
Question 18: Which of the following is not one of the reasons bioluminescence is employed by deep-sea
animals?
Answer: warning coloration
Question 19: Identify the adaptation that allows deep-sea fishes to capture prey without exerting much
energy.
Answer: sensitive lateral lines
Page 2
