Question 1

Which group of organisms has eyes with a lens and a retina similar to those of vertebrates?

Accepted Answer

A)  nematodes 
B)  gastropods 
C)  cephalopods 
D)  arthropods 
E)  echinoderms 
A)  nematodes 
B)  gastropods 
C)  cephalopods 
D)  arthropods 
E)  echinoderms C

Question 2

The insect organ most equivalent to the human lung in function is the

Accepted Answer

A)  tracheae. 
B)  midgut. 
C)  crop. 
D)  gizzard. 
E)  Malpighian tubule. 
A)  tracheae. 
B)  midgut. 
C)  crop. 
D)  gizzard. 
E)  Malpighian tubule. A

Question 3

Which of these is a characteristic of sponges?

Accepted Answer

A)  They are sessile filter feeders. 
B)  The body wall has two cell layers. 
C)  Flagellated collar cells move water. 
D)  Amoeboid cells transport food and make skeletal fibers and gametes. 
E)  All of the answer choices are characteristics of sponges. 
A)  They are sessile filter feeders. 
B)  The body wall has two cell layers. 
C)  Flagellated collar cells move water. 
D)  Amoeboid cells transport food and make skeletal fibers and gametes. 
E)  All of the answer choices are characteristics of sponges. E

Question 4

Earthworms possess both male and female organs on separate segments; thus, mating consists of "parallel parking" in opposite directions and cross-fertilizing. Given this, which of the following is true?

Accepted Answer

A)  This is evidence of a primitive state that is generally less efficient than separate sexes. 
B)  This is primarily to allow them to self-fertilize if no other worm is in their sector of the soil. 
C)  This is an advantage since they can mate with any other earthworm of the same species that they encounter. 
D)  Maintaining any system not clearly male or female is disadvantageous; the earthworm is trapped in an evolutionary dead end. 
E)  This demonstrates how ineffective self-fertilization is as a means of reproduction. 
A)  This is evidence of a primitive state that is generally less efficient than separate sexes. 
B)  This is primarily to allow them to self-fertilize if no other worm is in their sector of the soil. 
C)  This is an advantage since they can mate with any other earthworm of the same species that they encounter. 
D)  Maintaining any system not clearly male or female is disadvantageous; the earthworm is trapped in an evolutionary dead end. 
E)  This demonstrates how ineffective self-fertilization is as a means of reproduction.

Question 5

The bristles that earthworms use to anchor themselves in the earth and pull themselves along are

Accepted Answer

A)  aortic arches. 
B)  lateral ventricles. 
C)  setae. 
D)  parapodia. 
E)  nephridia. 
A)  aortic arches. 
B)  lateral ventricles. 
C)  setae. 
D)  parapodia. 
E)  nephridia.

Question 6

Ascaris is considered to be a(n)

Accepted Answer

A)  flatworm. 
B)  earthworm. 
C)  roundworm. 
D)  cnidarian. 
E)  arthropod. 
A)  flatworm. 
B)  earthworm. 
C)  roundworm. 
D)  cnidarian. 
E)  arthropod.

Question 7

Which of the following statements is/are correct about the roundworms?

Accepted Answer

A)  There are three layers of tissues in the body. 
B)  Roundworms have a tube-within-a-tube body plan. 
C)  There is an internal body cavity called a pseudocoelom. 
D)  Roundworms have a smooth, unsegmented outside body wall. 
E)  All the answer choices are true statements about roundworms. 
A)  There are three layers of tissues in the body. 
B)  Roundworms have a tube-within-a-tube body plan. 
C)  There is an internal body cavity called a pseudocoelom. 
D)  Roundworms have a smooth, unsegmented outside body wall. 
E)  All the answer choices are true statements about roundworms.

Question 8

Clams, snails, sea slugs, and octopuses belong to the phylum

Accepted Answer

A)  Annelida. 
B)  Mollusca. 
C)  Porifera. 
D)  Platyhelminthes. 
E)  Arthropoda. 
A)  Annelida. 
B)  Mollusca. 
C)  Porifera. 
D)  Platyhelminthes. 
E)  Arthropoda.

Question 9

List the five general characteristics shared by animals.

Accepted Answer

1. Animals typically have the power of l

Question 10

Fertilization in the earthworm is accomplished by the use of the

Accepted Answer

A)  nephridia. 
B)  clitellum. 
C)  flame cells. 
D)  trachea. 
E)  typhlosole. 
A)  nephridia. 
B)  clitellum. 
C)  flame cells. 
D)  trachea. 
E)  typhlosole.

Question 11

Which of the following infections is associated with a flatworm?

Accepted Answer

A)  hookworm 
B)  trichinosis 
C)  elephantiasis 
D)  tapeworm 
E)  pinworm 
A)  hookworm 
B)  trichinosis 
C)  elephantiasis 
D)  tapeworm 
E)  pinworm

Question 12

A cnidarian moves via

Accepted Answer

A)  nematocysts. 
B)  secreting a slime layer. 
C)  pseudopods. 
D)  muscle and nerve fibers. 
E)  contractile vacuoles. 
A)  nematocysts. 
B)  secreting a slime layer. 
C)  pseudopods. 
D)  muscle and nerve fibers. 
E)  contractile vacuoles.

Question 13

If you live on a river delta or coastline, you may not be able to eat the local clams because of high levels of toxins present in the water. Why?

Accepted Answer

A)  Clams seasonally produce toxic substances. 
B)  Clams regularly consume poisonous red tide organisms. 
C)  Most native clams have been replaced by harmful exotic species. 
D)  Clams are filter-feeders and pollutants in the water become concentrated in their tissues. 
E)  The toxins contained in clams cannot be detoxified in the human digestive tract. 
A)  Clams seasonally produce toxic substances. 
B)  Clams regularly consume poisonous red tide organisms. 
C)  Most native clams have been replaced by harmful exotic species. 
D)  Clams are filter-feeders and pollutants in the water become concentrated in their tissues. 
E)  The toxins contained in clams cannot be detoxified in the human digestive tract.

Question 14

Which of the following is true about deuterostomes?

Accepted Answer

A)  Deuterostomes have two tissue layers. 
B)  Cleavage is spiral. 
C)  The first opening during embryonic development becomes the anus. 
D)  The mesoderm arises from cells located near the embryonic blastopore. 
E)  Deuterostomes include the ecdysozoa and the spiralia. 
A)  Deuterostomes have two tissue layers. 
B)  Cleavage is spiral. 
C)  The first opening during embryonic development becomes the anus. 
D)  The mesoderm arises from cells located near the embryonic blastopore. 
E)  Deuterostomes include the ecdysozoa and the spiralia.

Question 15

In which way are crayfish and grasshoppers similar?

Accepted Answer

A)  Both have tympanum for use in mating rituals. 
B)  Both have Malpighian tubules that function in the extraction of nitrogenous waste. 
C)  Both have spicules and a tracheal system for respiration. 
D)  Both have bodies that are composed of a cephalothorax and abdomen. 
E)  Both have antennae that have a sensory function. 
A)  Both have tympanum for use in mating rituals. 
B)  Both have Malpighian tubules that function in the extraction of nitrogenous waste. 
C)  Both have spicules and a tracheal system for respiration. 
D)  Both have bodies that are composed of a cephalothorax and abdomen. 
E)  Both have antennae that have a sensory function.

Question 16

Although the many organisms classified as molluscs vary tremendously in appearance, they are all classified in the same phylum because they

Accepted Answer

A)  are segmented. 
B)  are predators. 
C)  have an external skeleton. 
D)  have a mantle, visceral mass, and a foot. 
E)  have shells. 
A)  are segmented. 
B)  are predators. 
C)  have an external skeleton. 
D)  have a mantle, visceral mass, and a foot. 
E)  have shells.

Question 17

"Derm" means "skin," so the name Echinodermata literally means

Accepted Answer

A)  soft skin. 
B)  hairy skin. 
C)  spiny skin. 
D)  skinless. 
E)  three layers of skin. 
A)  soft skin. 
B)  hairy skin. 
C)  spiny skin. 
D)  skinless. 
E)  three layers of skin.

Question 18

Larval Trichinella worms live in the

Accepted Answer

A)  liver. 
B)  lungs. 
C)  lymph glands. 
D)  skeletal muscle of pork. 
E)  water. 
A)  liver. 
B)  lungs. 
C)  lymph glands. 
D)  skeletal muscle of pork. 
E)  water.

Question 19

Which body structure describes the freshwater hydra?

Accepted Answer

A)  a swimming medusa with mouth pointing downward 
B)  a swimming medusa with mouth pointing upward 
C)  a sessile medusa with mouth pointing upward 
D)  a polyp with mouth pointing downward 
E)  a polyp with mouth pointing upward 
A)  a swimming medusa with mouth pointing downward 
B)  a swimming medusa with mouth pointing upward 
C)  a sessile medusa with mouth pointing upward 
D)  a polyp with mouth pointing downward 
E)  a polyp with mouth pointing upward

Question 20

Earthworms differ from most of the marine annelids in that earthworms

Accepted Answer

A)  lack setae that marine annelids have. 
B)  lack paddle-like parapodia that marine annelids have. 
C)  have segments, while marine annelids do not. 
D)  develop from a larval form, while marine annelids do not. 
E)  have well-developed brains and sensory organs in the head region, while marine annelids do not. 
A)  lack setae that marine annelids have. 
B)  lack paddle-like parapodia that marine annelids have. 
C)  have segments, while marine annelids do not. 
D)  develop from a larval form, while marine annelids do not. 
E)  have well-developed brains and sensory organs in the head region, while marine annelids do not.

Exam 31: Animals: the Invertebrates

Which group of organisms has eyes with a lens and a retina similar to those of vertebrates?

The insect organ most equivalent to the human lung in function is the

Which of these is a characteristic of sponges?

Earthworms possess both male and female organs on separate segments; thus, mating consists of "parallel parking" in opposite directions and cross-fertilizing. Given this, which of the following is true?

The bristles that earthworms use to anchor themselves in the earth and pull themselves along are

Ascaris is considered to be a(n)

Which of the following statements is/are correct about the roundworms?

Clams, snails, sea slugs, and octopuses belong to the phylum

List the five general characteristics shared by animals.

Fertilization in the earthworm is accomplished by the use of the

Which of the following infections is associated with a flatworm?

A cnidarian moves via

If you live on a river delta or coastline, you may not be able to eat the local clams because of high levels of toxins present in the water. Why?

Which of the following is true about deuterostomes?

In which way are crayfish and grasshoppers similar?

Although the many organisms classified as molluscs vary tremendously in appearance, they are all classified in the same phylum because they

"Derm" means "skin," so the name Echinodermata literally means

Larval Trichinella worms live in the

Which body structure describes the freshwater hydra?

Earthworms differ from most of the marine annelids in that earthworms

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