Zoology
Which of the following is NOT true about the Mollusca? All of the above
The uniquely derived rasping tongue of the Mollusca is called the? Radula
Which of the following is mismatched? Scaphopoda–chitons
Where would you place a creature that has the following characters: can burrow in sediment; moves by means of "clapping" two valves together, lacks a radula; eyes with a retina; shell with an umbo? Bivalvia
Which of the following is NOT correct? The Mollusca have metanephridia for a circulatory system
Which of the following is NOT correct? Members of the Class Monoplacophora are all extinct
Which of the following is mismatched? Operculum–an opening in the shell of a gastropod
In most freshwater clams fertilization is internal and the fertilized eggs develop into glochidia. True
The early nautiloid and ammonoid shells were heavy but made buoyant by a series of gas chambers connected by a cord of living tissue called a? Siphuncle
Some cephalopods are hermaphrodites. False
Nematodes are the most important pseudocoelomate animals, both in terms of numbers and their impact on humans. True
Nematodes may be which of the following? All of the above
Virtually every species of vertebrate and many invertebrates serve as hosts for one or more types of parasitic nematodes. True
Which of the following is incorrect? Parastic nematodes–have an advanced Krebs cycle for metabolism
It is estimated that nearly 1.27 billion people are infected worldwide with Ascaris lumbricoides. True
Which of the following is not correct? The dog heartworm is troublesome, but not dangerous.
Which of the following is NOT considered to be an ecdysozoan? Brachiopoda
Which of the following is NOT an external feature of the onychophorans? Chelicerae
Onychophorans are similar to insects in that they have a tracheal system that ramifies to all parts of the body and communicates with the outside by means of spiracles. True
The onychophorans have a closed circulatory system. False
Legs of
The uniquely derived rasping tongue of the Mollusca is called the? Radula
Which of the following is mismatched? Scaphopoda–chitons
Where would you place a creature that has the following characters: can burrow in sediment; moves by means of "clapping" two valves together, lacks a radula; eyes with a retina; shell with an umbo? Bivalvia
Which of the following is NOT correct? The Mollusca have metanephridia for a circulatory system
Which of the following is NOT correct? Members of the Class Monoplacophora are all extinct
Which of the following is mismatched? Operculum–an opening in the shell of a gastropod
In most freshwater clams fertilization is internal and the fertilized eggs develop into glochidia. True
The early nautiloid and ammonoid shells were heavy but made buoyant by a series of gas chambers connected by a cord of living tissue called a? Siphuncle
Some cephalopods are hermaphrodites. False
Nematodes are the most important pseudocoelomate animals, both in terms of numbers and their impact on humans. True
Nematodes may be which of the following? All of the above
Virtually every species of vertebrate and many invertebrates serve as hosts for one or more types of parasitic nematodes. True
Which of the following is incorrect? Parastic nematodes–have an advanced Krebs cycle for metabolism
It is estimated that nearly 1.27 billion people are infected worldwide with Ascaris lumbricoides. True
Which of the following is not correct? The dog heartworm is troublesome, but not dangerous.
Which of the following is NOT considered to be an ecdysozoan? Brachiopoda
Which of the following is NOT an external feature of the onychophorans? Chelicerae
Onychophorans are similar to insects in that they have a tracheal system that ramifies to all parts of the body and communicates with the outside by means of spiracles. True
The onychophorans have a closed circulatory system. False
Legs of