Ch.29 Animal Plant: Lophotrochozoans Flashcards
- Name the two clades of protostomes?
a. Lophotrochozoa and Deuterostomia.
b. Ecdysozoa and Lophotrochozoa.
c. Lophotrochozoa and Platyhelminthes.
d. Protozoa and Lophotrochozoa.
b. Ecdysozoa and Lophotrochozoa
This class of the Platyhelminthes consists of the parasitic flukes.
a. Turbellaria.
b. Cestoda.
c. Trematoda.
d. Nemertea.
c. Trematoda.
What is the function of the scolex in a tapeworm?
a. Attachment to the host.
b. Gas exchange.
c. Reproduction.
d. Digestion.
a. Attachment to the host.
Rotifers have a(n)______________.
a. incomplete digestive system
b. complete digestive system
c. circulatory system
d. B and C
b. complete digestive system
Which class of molluscs is the most diverse?
a. Class Cephalopoda.
b. Class Bivalvia.
c. Class Polyplacophora.
d. Class Gastropoda.
d. Class Gastropoda.
Setae serve various functions in different annelid species. They are used ______.
a. as anchor mechanisms
b. in locomotion
c. in respiration
d. all of the above
d. all of the above
Earthworms are monoecious, meaning _______________.
a. they possess a singular sex organ
b. they possess both male and female organs
c. they eat only one sort of food
d. they are either male or female
b. they possess both male and female organs
Which of the following are acoelomates?
a. Free-living planarians.
b. Flukes.
c. Tapeworms.
d. All of the above
d. All of the above
What class of molluscs provides us with our seafood dinners of clams, oysters, mussels, and scallops?
a. Class Cephalopoda.
b. Class Bivalvia.
c. Class Polyplacophora.
d. Class Gastropoda.
b. Class Bivalvia.
Cutting a planarian in half results in the subsequent formation of two fully formed individuals. What is this process called?
a. Magnification.
b. Regreneration
c. Reproduction.
d. Budding.
b. Regeneration
Name this thick walled muscular structure found in the earthworm.
a. Crop.
b. Gizzard.
c. Clitellum.
d. Seminal vesicles.
b. Gizzard.
What is the function of the pharynx in the planarian?
a. Obtaining food.
b. Excreting waste.
c. Reproduction.
d. Locomotion.
a. Obtaining food
A pearl is made from what natural process?
a. A stone enters oysters or mussels and is rubbed smooth.
b. An irritant enters an oyster or mussel and is coated in calcium carbonate.
c. An organ within an oyster or mussel becomes calcified.
d. It is a genetic mutation in oysters and mussels.
b. An irritant enters an oyster or mussel and is coated in calcium carbonate.
A radula is present in which mollusc?
a. Snail.
b. Clam.
c. Squid.
d. A and C.
d. A and C.
Which of the following is NOT a characteristic of organisms in the class Cestoda?
a. Possess a muscular pharynx.
b. Are made up of a series of proglottids.
c. Are dependent on their host for nutrition.
d. Monoecious.
a. Possess a muscular pharynx.