Chapter 28: Q 30. (page 776)
Describe the morphology and anatomy of mollusks.
Short Answer
A muscular foot, visceral mass, mantle and radula are some characteristic features of mollusks.
Chapter 28: Q 30. (page 776)
Describe the morphology and anatomy of mollusks.
A muscular foot, visceral mass, mantle and radula are some characteristic features of mollusks.
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Get started for freeThe embryonic development in nematodes can have up to __________ larval stages.
a. one
b. two
c. three
d. four
A mantle and mantle cavity are present in:
a. phylum Echinodermata.
b. phylum Adversoidea.
c. phylum Mollusca.
d. phylum Nemertea.
How does segmentation enhance annelid locomotion?
a. Segmentation creates repeating body structures so the entire organism functions in synchrony.
b. Segmentation allows specialization of different body regions.
c. Neural segmentation allows annelids to localize sensations.
d. Muscle contractions can be localized to specific regions of the body to coordinate movement.
The large central opening in the parazoan body is called the:
a. gemmule.
b. spicule.
c. Ostia.
d. osculum.
How do terrestrial arthropods of the subphylum Hexapoda impact the world’s food supply? Provide at least two positives and two negative effects.
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