Zoology Exam #3
What mollusk body region is responsible for secreting shell material? - Answer-Mantle
Which group of mollusks are monoecious? - Answer-Terrestrial Snails
Which class of mollusks filter feeds? - Answer-Bivalvia (clams and mussels)
_________________ is exhibited by many marine gastropods to serve as a warning that an animal is
toxic or inedible. - Answer-aposematism
Many freshwater mussels produce parasitic larvae known as ___________ that attach to fish gills. -
Answer-glochidia
____________ are specialized pigment cells that enable these highly intelligent invertebrates to change
color - Answer-chromatophores
____________ are the molluscan class that exclusively relies on filter feeding for nutrition. - Answer-
Bivalves
T or F: The only class of mollusks with terrestrial species is Gastropoda. - Answer-True
Which characteristic is not attributed to the success of arthropods? Tamatization, Hemocoel,
Endothermy, and Metamorphosis. - Answer-Endothermy
, What animals are spiders most closely related? - Answer-Horse shoe crab
Which arthropod subphylum has two body regions and no antennae? - Answer-Chelicerata
Some arthropods exhibit viviparity. True or false? - Answer-True
Which type of insect metamorphosis is the most common and has a resting pupal stage? - Answer-
Holometabolous
What structure in echinoderms regulates the amount of water in the water vascular system? - Answer-
Madreporite
Which group of echinoderms does not have a well-developed exoskeleton? - Answer-Sea Cucumbers
(Class Holothuridea)
Which group of echinoderms can be venomous? - Answer-Sea Urchins (Class Echinoidea)
What feeding strategy do pterobranchs use? - Answer-Filter-feeding
Marine, segmented worms reproduce by reciprocal sperm exchange during internal fertilization. True or
false? - Answer-False
Ametabolous development is the least common type of insect metamorphosis. True or false? - Answer-
True
Echinoderms are deutersotomes, therefore have dorsal nerve cord. True or false? - Answer-False
What mollusk body region is responsible for secreting shell material? - Answer-Mantle
Which group of mollusks are monoecious? - Answer-Terrestrial Snails
Which class of mollusks filter feeds? - Answer-Bivalvia (clams and mussels)
_________________ is exhibited by many marine gastropods to serve as a warning that an animal is
toxic or inedible. - Answer-aposematism
Many freshwater mussels produce parasitic larvae known as ___________ that attach to fish gills. -
Answer-glochidia
____________ are specialized pigment cells that enable these highly intelligent invertebrates to change
color - Answer-chromatophores
____________ are the molluscan class that exclusively relies on filter feeding for nutrition. - Answer-
Bivalves
T or F: The only class of mollusks with terrestrial species is Gastropoda. - Answer-True
Which characteristic is not attributed to the success of arthropods? Tamatization, Hemocoel,
Endothermy, and Metamorphosis. - Answer-Endothermy
, What animals are spiders most closely related? - Answer-Horse shoe crab
Which arthropod subphylum has two body regions and no antennae? - Answer-Chelicerata
Some arthropods exhibit viviparity. True or false? - Answer-True
Which type of insect metamorphosis is the most common and has a resting pupal stage? - Answer-
Holometabolous
What structure in echinoderms regulates the amount of water in the water vascular system? - Answer-
Madreporite
Which group of echinoderms does not have a well-developed exoskeleton? - Answer-Sea Cucumbers
(Class Holothuridea)
Which group of echinoderms can be venomous? - Answer-Sea Urchins (Class Echinoidea)
What feeding strategy do pterobranchs use? - Answer-Filter-feeding
Marine, segmented worms reproduce by reciprocal sperm exchange during internal fertilization. True or
false? - Answer-False
Ametabolous development is the least common type of insect metamorphosis. True or false? - Answer-
True
Echinoderms are deutersotomes, therefore have dorsal nerve cord. True or false? - Answer-False
