Bio II Final 2nd Semester

What type of symmetry does the animal in Figure 23.1 have?

a. radial

A mollusk's radula is a

c. File-like feeding organ

Both mollusks and annelids

a. Have true coeloms

Mollusks : foot :::

b. Earthworms : setae

A characteristic structure found in many mollusks is the radula, which is involved in

c. Feeding

Refer to the illustration above. Which two organisms possess mantles?

c. Organisms A and D

Refer to the illustration above. The structure labeled D performs all the following functions except

b. Scraping food particles into the mouth

Refer to the illustration above. Which correctly identifies the phylum and class of the organism above, its usual environment, and how you know.

d. Mollusca, gastropod, terrestrial, because it has a shell

Which of the following is not a member of the phylum Mollusca?

b. echinoderm

All of the following are classes of mollusks except

d. Pseudopods.

The only mollusks that have a closed circulatory system are

b. Cephalopods.

Jet propulsion is the usual means of locomotion in water for

c. cephalopods.

All cephalopods

b. are active predators.

Octopuses and squids differ from all other mollusks because octopuses and squids

a. have closed circulatory systems.

Jet propulsion in an octopus or a squid is the result of

d. forcefully squeezing water from the siphon.

The most significant evolutionary advancement of annelids over mollusks is believed to be

c. segmentation.

Which of the following is correctly paired?

c. phylum Mollusca-octopus

Of the following organs, the one that does not exist in annelids is the

b. mantle.

The clitellum of an earthworm

b. is associated with reproduction.

In which way do earthworms not benefit the environment?

d. They require moisture in their surroundings.

The body of a leech

d. does not have septa.

Leeches

c. Are used in some medical treatments

earthworm movement: circular muscles and setae ::

d. earthworm respiration: skin

Mollusks such as the squid or the octopus move quickly by ejecting water out of which of the following structures?

a. Siphon

The tentacles of a cephalopod are part of which structure?

d. foot

How do nudibranchs protect themselves?

b. They use jellyfish nematocysts.

Clams, oysters, and scallops are members of which class of mollusk?

b. bivalves

Which structure physically breaks down food in the earthworm digestive tract?

c. Gizzard

Which of the following structures is essential to earthworm locomotion?

a. setae

Which character is unique to polychaete annelids?

c. Parapodia

Mollusks such as the squid or the octopus move quickly by ejecting water out of which of the following structures?

a. Siphon

The tentacles of a cephalopod are part of which structure?

d. Foot

How do nudibranchs protect themselves?

b. They use jellyfish nematocysts.

Clams, oysters, and scallops are members of which class of mollusk?

b. Bivalves

Which structure physically breaks down food in the earthworm digestive tract?

c. gizzard

Which of the following structures is essential to earthworm locomotion?

a. setae

Which character is unique to polychaete annelids?

b. parapodia

Which shell shown in Figure 27-2 from a bivalve?

c. C

Which shell shown Figure 27-2 came from a stomach-footed mollusk?

a. A

Sea stars feed by

c. pushing their stomachs out of their mouths

The only adult echinoderms that do not display radial symmetry are

a. sea cucumbers.

What is the term for the plates that form an echinoderm's skeleton?

d. Ossicles

A sea star uses its tube feet to

a. grab objects and move around.

What is the function of the water vascular system?

c. store water for circulation and to fill tube feet

Both arthropods and annelids have

d. segmented bodies.

Which shell shown Figure 27-2 came from a stomach-footed mollusk?

a. A

Spiders, scorpions, and mites belong to the subphylum

d. Chelicerata.

All of the following are arthropods except

b. Sea illies.

arthropod exoskeleton: muscle attachment::

c. arthropod appendages: walking or chewing

The exoskeleton of an insect

b. is moved by muscles that are attached to the inside of the exoskeleton.

Which of the following is not a function of arthropod appendages?

d. Molting

The exoskeleton of arthropods is made of a material called

c. Chitin

Which of the following is not a modification of arthropod appendages?

d. excretory tubules

Malpighian tubules in insects

a. remove wastes.

In what way are lobsters not similar to spiders?

d. They both have chelipeds

Characteristics of arthropods do not include

d. Ossicles.

To grow larger, arthropods must

b. grow a new exoskeleton.

Crabs, lobsters, shrimps, and pill bugs are members of the class

c. Crustacea

Spiders typically have

c. two body segments and eight legs.

Before an arthropod molts, a new exoskeleton

d. grows beneath its old one

Spiders, scorpions, and ticks belong to the class

d. Arachnida.

Lyme disease is transmitted through the bite of a

b. deer tick.

Most insect

d. have two pairs of wings and three pairs of legs.

Refer to the illustration above. Which organism has a chitinous exoskeleton?

b. organism B

In incomplete metamorphosis, the young insect hatches from the egg as a(n)

d. Nymph

Refer to the illustration above. The life cycle shown is an example of

b. complete metamorphosis.

Refer to the illustration above. The developmental stage shown in C is known as the

d. Pupa.

Refer to the illustration above. Mandibles are attached to the structure labeled

b. B

29. Refer to the illustration above. The structure labeled C is called the

d. Abdomen.

Refer to the illustration above. The structure labeled D is called the

c. Thorax.

Refer to the illustration above. The structures labeled A are

c. specialized for sensing the environment.

Refer to the illustration above. "A flattened, paddle-like appendage" best describes the

b. E

Refer to the illustration above. The structure labeled C is the

Refer to the illustration above. The structure labeled B is called the

b. Cephalothorax

Refer to the illustration above. The organism shown is a(n)

c. Crustacean.

Crabs, lobsters, shrimp, and barnacles are members of the subphylum

c. Crustacea.

Echinoderms

c. are bilaterally symmetrical as larvae and radially symmetrical as adults.

Which of the following is a sessile echinoderm?

a. sea lillies

Interconnected canals and hollow tube feet work together in a sea star's

d. water-vascular system.

Each tube foot of a sea star is connected to a water-filled sac called a(n)

b. Ampulla.

During the process of incomplete metamorphosis, a young insect looks like a

d. miniature adult.

Which of the following is an unintended consequence of insecticide?

a. toxicity to organisms other than the target insect population

The entire surface of an arthropod's body is covered by a protective

b. Exoskeleton.

Crustaceans have mouths composed of a pair of

a. Mandibles.

Barnacles, isopods, and tongue worms are all examples of

a. crustaceans.

Which of the four animals shown below is a chelicerate?

b. B

How many distinct body sections do crustaceans have?

b. two

An animal that has eight legs, fanglike pincers, and the ability to produce silk is a(n)

c. arachnid

What type of metamorphosis is shown in Figure 28-67

b. complete

What stage of metamorphosis shown in Figure 28-6 does the most eating take place?

b. B

What clue tells you immediately that the organism shown in Figure 28-2 is not an arthropod?

c. it has no open circulation system

The characteristic that most distinguishes arthropods from other invertebrates is

c. jointed appendages

What phylum of invertebrates has bilateral symmetry as larvae and radial symmetry as adults?

c. Echinodermata

What are cnidocytes?

a. specialized cells that contain stinging structures

Refer to the illustration above. The position of which arrow can be referred to as anterior?

b. 4

At some point in their development, all chordates have a supportive rod along their backs called the

c. Notochord.

The first fishes to appear in the seas were members of which group?

d. agnathans

In fishes, the lateral line senses

d. vibrations.

lateral line: motion detector::

c. operculum: water pump

Generally, fishes obtain oxygen through their

c. Gills.