Chapter 14 Exam 5

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Which of the following groups of organisms are considered zooplankton? Choose all that apply.

- Jellyfish - Radiolarians - Krill - Copepods

Which of the following animals uses an internal chambered structure as a rigid gas container to achieve neutral buoyancy?

Cuttlefish

Which of the following statements about odontocetes are true? Choose all that apply.

- Odontoceti form long-lived social groups. - Odontoceti have prominent teeth and good vision. - Odontoceti have large brains relative to their body size. - Odontoceti have the ability to use echolocation.

Which of the following statements about gray whales are true? Choose all that apply.

-Gray whales typically feed on bottom-dwelling organisms, such as crustaceans and clams. -Gray whales spend most of their time in coastal waters. -Gray whales undertake the longest migration of any mammal. -Gray whales used to be known as "devilfish" for their aggressive behavior toward whalers. -Gray whales are one of only a few species ever to be removed from endangered status.

Which of the following statements about the characteristics of marine mammals are true? Choose all that apply.

-Marine mammals are warm-blooded. -Marine mammals must surface to breathe air. -Marine mammals bear live young. -Marine mammals evolved from land species. -Marine mammals have hair (or fur) during at least some stage of their development.

Of the following statements about bioluminescence in deep-water nekton, which is/are true? Choose all that apply.

-The majority of deep-water nekton can bioluminesce. -Bioluminescence can be used to attract a mate. -Bioluminescent light can be used to stake out territory. -A flash of bioluminescent light can temporarily blind a predator, allowing the prey to escape. -Bioluminescent light can attract and lure prey to a predator.

Which of the following affect the ability of species to capture food?

All the above affect the ability of pelagic organisms to capture food.

Which of the following have gas chambers that serve as floats and sails that allow the wind to push them across the ocean surface?

Cnidarians

Which of the following have soft bodies that are more than 95% water?

Cnidarians

A remora attaching itself to a shark to obtain food and transportation without harming its host is an example of which of the following types of symbiotic relationship?

Commensalism

Which of the following compose the majority of the ocean's zooplankton biomass?

Copepods

Which of the following have a hard exoskeleton and a segmented body with jointed legs, forked tails and distinct antennae?

Copepods

Whales evolved from a land-dwelling ancestor similar to which of the following?

Hippopotamus

Despite the International Whaling Commission ban on commercial whaling which of the following nations continues to hunt whales under the guise of scientific research?

Japan

Which of the following is not an adaptation of deep-sea fishes?

Large body sizes

The stinging tentacles of a sea anemone protecting a clown fish which chases away any fish that tries to feed on the anemone is an example of which of the following types of symbiotic relationship?

Mutualism

Which of the following animals uses an external shell as a rigid gas container to achieve neutral buoyancy?

Nautilus

An isopods attaching itself to a fish and derive its nutrition from the body fluids of the fish, robbing it of some of its energy supply, is an example of which of the following types of symbiotic relationship?

Parasitism

Which of the following is the most important function of schooling in small fish?

Protection from predators

Which of the following are single-celled, microscopic protozoans that build their hard shells out of silica?

Radiolarians

Which of the following animals uses an internal chambered structure as a rigid gas container to achieve neutral buoyancy?

Spirula

Which of the following statements regarding sea otters is correct?

They are one of the few types of animals known to use tools.

Which of the following statements regarding Manatees is correct?

Their front flippers have nails that resemble the nails on elephant feet.

Which of the following statements regarding polar bears is correct?

They have massive webbed paws that make them excellent swimmers.

Which of the following statements regarding seals is correct?

They propel themselves through water by using their rear flippers.

Which of the following characteristics is not found in cruising fishes such as tuna?

They rely on a swim bladder for neutral buoyancy.

Which of the following statements of the Pacific Coast Feeding Group is correct?

They spend the summer along the Pacific coast from Canada to northern California.

Which of the following animals doesn't use a rigid gas container or a swim bladder?

Tuna

Which of the following is not one of the reasons bioluminescence is employed by deep-sea animals?

Warning coloration

Which set of fins is used as stabilizers?

anal and dorsal

Microscopic, shrimplike animals that have a hard exoskeleton that can be either herbivorous, carnivorous, or parasitic are called:

copepods

Sea lions are easily distinguished from seals because they:

have external ears.

The gray whale and other baleen whales migrate every year to:

mate and give birth in the tropics during the winter.

The oxygen-storing compound in the red muscle tissue of fishes is called _________.

myoglobin

The stinging cells used by cnidarians to capture prey are called _________.

nematocysts

The fins used by fishes primarily for maneuvering are _________.

pectoral and pelvic

Which set of fins is used for turning and braking?

pectoral and pelvic

An organism such as a fish whose body temperature is nearly the same as the environment is referred to as:

poikilothermic

Which of the following animals compensates for not having a swim bladder by using large and flat pectoral fins and an asymmetrical caudal fin to produce lift?

shark

White muscle tissue in fish is ________ and contains much ________ concentrations of myoglobin than red muscle tissue.

thicker; lower

Red muscle tissue in fish is ________ and contains much ________ concentrations of myoglobin than white muscle tissue.

thinner; higher

The function of a swim bladder is:

to allow a fish to change position in the water column.


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