Biology 1402 Exam 2 (Part 2)

60 Questions | By Vlgarza08 | Last updated: Mar 21, 2022 | Total Attempts: 107

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1.

Trichinella nematodes reach muscle tissue, forming resistant cysts, after
- A.
  
  Entering the circulatory system following penetration of the skin of the foot.
- B.
  
  Entering the circulatory system following penetration of the intestinal wall.
- C.
  
  Entering the lymph channels following penetration of the intestine.
- D.
  
  Entering the lymph channel following penetration of lung tissue.
- E.
  
  None of these.
2.

The human disease, trichinosis, is contracted through
- A.
  
  Walking barefoot in soil containing larvae.
- B.
  
  Eating fertilized eggs.
- C.
  
  Eating undercooked or raw pork.
- D.
  
  Eating raw beef.
- E.
  
  None of these.
3.

Which of the following nematode parasites lives in the lymphatic system of humans where they may cause obstruction resulting in severe swelling called elephantiasis.
- A.
  
  Ascaris
- B.
  
  Trichinella
- C.
  
  Necator
- D.
  
  Filaria
- E.
  
  Enterobius
4.

An invertebrate biologist explains to your class that she studies the choanocytes of sponges. You know that choanocytes are
- A.
  
  Specialized cells near the osculum of the sponge.
- B.
  
  Specialized cells that contain spongin and thus contribute to the sponge's rigid structure.
- C.
  
  Specialized cells that eventually form spicules.
- D.
  
  Specialized cells that have flagella and function to gather food particles.
- E.
  
  Specialized cells from which larval sponges develop.
5.

All of the following statements about Cnidaria are correct with the exception of
- A.
  
  Cnidarians can have two body forms, polyp and medusa.
- B.
  
  Cnidarians are triploblastic, having ectoderm, mesoderm, and endoderm.
- C.
  
  Cnidarians have radical symmetry.
- D.
  
  Cnidarians do not have circulatory, respiratory, or excretory systems.
- E.
  
  Cnidarians have specialized cells called cnidocytes with nematocysts inside.
6.

Which of the following are not correctly matched?
- A.
  
  Spicules—sponges
- B.
  
  Nematocyst—cnidaria
- C.
  
  Flame cells—flatworms
- D.
  
  Stylets—roundworms
- E.
  
  Scolex—rotifers
7.

Which one of the following taxa is not part of the grouping of clades called the Spiralia?
- A.
  
  Nematoda
- B.
  
  Rotifera
- C.
  
  Bryozoa
- D.
  
  Annelida
- E.
  
  Mollusca
8.

Which one of the following taxa is not part of the grouping of clades called the Platyzoa?
- A.
  
  Platyhelminthes
- B.
  
  Annelida
- C.
  
  Rotifera
- D.
  
  Gastrotrica
- E.
  
  Micrognathozoa
9.

The phylum that includes snails, clams, oysters, and octopuses is the
- A.
  
  Ectoprocta.
- B.
  
  Brachiopoda.
- C.
  
  Mollusca.
- D.
  
  Annelida.
- E.
  
  Phoronida.
10.

In mollusks, the folds of tissue that arise from the dorsal body wall and enclose a cavity surrounding the visceral mass are called the
- A.
  
  Foot.
- B.
  
  Mantle.
- C.
  
  Nephiridia.
- D.
  
  Radula.
- E.
  
  Lophophore.
11.

Many marine mollusks have distinctive larvae which have their bodies encircled by a row of cilia. These larvae are called
- A.
  
  Panulae.
- B.
  
  Polyps.
- C.
  
  Miracidia.
- D.
  
  Zoecia.
- E.
  
  Tochophores.
12.

The organ that is responsible for secreting cocoons in the oligochaetes is known as the
- A.
  
  Nephridia.
- B.
  
  Setae.
- C.
  
  Radula.
- D.
  
  Clitellum.
- E.
  
  Lophophore.
13.

The functions of the lophophore include all of the following except as a
- A.
  
  Surface for gas exchange.
- B.
  
  Food-collecting organ.
- C.
  
  Means of attachment to the substrate. means of attachment to the substrate.
- D.
  
  Rasping tongue.
- E.
  
  Location for the tentacles and the anus.
14.

The three phyla, Ectoprocta, Brachiopoda, and Phoronida, have which feature in common?
- A.
  
  Nephiridia
- B.
  
  A lophophore
- C.
  
  A radula
- D.
  
  Setae
- E.
  
  A muscular foot
15.

The mollusks include all of the following except
- A.
  
  Clams.
- B.
  
  Oysters.
- C.
  
  Shrimps.
- D.
  
  Snails.
- E.
  
  Squids.
16.

Examples of mollusks that live on land are the
- A.
  
  Earthworms.
- B.
  
  Land crabs.
- C.
  
  Mussels.
- D.
  
  Scorpions.
- E.
  
  Snails and slugs.
17.

Mollusks have all of the following except
- A.
  
  Visceral mass covered with a soft epithelium.
- B.
  
  Folds enclosing a cavity between themselves and the visceral mass.
- C.
  
  Gills or lungs within the mantle.
- D.
  
  Individuals secrete a tiny chitinous chamber, zoecium.
- E.
  
  The shell consists of a horny outer layer, which is rich in protein.
18.

The rasping tongue, the radula, is present in which molluscan group?
- A.
  
  Bivalve
- B.
  
  Oyster
- C.
  
  Clam
- D.
  
  Snail
- E.
  
  Scallops
19.

The nitrogenous waste in mollusks is removed by
- A.
  
  Flame cells.
- B.
  
  Nephridia.
- C.
  
  Malpighian tubules.
- D.
  
  Incurrent siphon.
- E.
  
  Flagella.
20.

Trochophores, the free-swimming larvae of many mollusks, are propelled through the water by
- A.
  
  Flagella.
- B.
  
  Cilia.
- C.
  
  Flame cells.
- D.
  
  Nephridia.
- E.
  
  The radula.
21.

Radula modification allowed all of the following functions in gastropods except
- A.
  
  Scraping algae off rocks.
- B.
  
  Eating vegetation.
- C.
  
  Boring holes in other mollusk shells.
- D.
  
  Protecting themselves with nematocysts.
- E.
  
  Injecting poison through a harpoon-like structure.
22.

Which of the following are not found in a bivalve?
- A.
  
  Tentacle, radula, and distinctive head
- B.
  
  Large wedge-shaped foot
- C.
  
  Mantle enveloping the internal organs
- D.
  
  Two large adductor muscles
- E.
  
  Complex gills
23.

The cephalapod mollusks have
- A.
  
  A muscular foot.
- B.
  
  Tentacles.
- C.
  
  Two siphons.
- D.
  
  Setae.
- E.
  
  Jointed appendages.
24.

Which of the following organs of cephalopods resemble those of the vertebrates?
- A.
  
  Arms
- B.
  
  Nephridia
- C.
  
  Eyes
- D.
  
  Digestive tissues
- E.
  
  Foot
25.

The partitions that separate the segments of the annelid body are known as
- A.
  
  Pseudocoels.
- B.
  
  Nephiridia.
- C.
  
  Setae.
- D.
  
  Septa.
- E.
  
  Radula.

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