Biology Questions and Answers
Molluscs
- What are some
representatives of the phylum
Mollusca?
Snails, octopare examples of molluscs.uses, squids and oysters
- In which habitats do
molluscs live?
Molluscs can be found in the sea,
freshwater environments.and in terrestrial
- What is the morphological
feature of molluscs after
which the phylum is named?
The word “mollusc”Molluscs have soft bodies an means “soft thing”.d this
feature explains the phylum. name of the
- What are the biological
troubles that molluscs face
due to their soft body?
Because are more fragile. molluscs have a soft body theyThey also have more
difficulty to support their bodies in
terrestrialsubstrates environments or to fixate in aquatic habitats. Many to
species solve these problems by
secreting a calcareous carapace, or
shell, an exoskeleton to sprotect them and to preventupport an d
dehydration.- Are mollusc metameric
beings? Exclusively analyzing
this feature could it be said
that molluscs are
evolutionarily proximal to
nematodes or to annelids?
In molluscsinto segments. Co there is not a body divinsidering just thisded
feature it could be said that
evolutionarily thnematodes than ey are more proximalto annelids. to - Into which classes are
mollusc divided? What are
some representing beings of
each class?
The phylum Mmain classes: pelecypods, or bivalvesollusca is divided into five
(Pelecypoda, or Bivalvia), includes
oysters, clams,(Gastropoda), snails, mussels; gastrop sea slugs; ods
cephalopods (Cephalopoda), squids,
octopuses; scaphtooth shells; Polyplacopopods (Scaphhora, chitons.opoda),
There are a few other mollusc classes. - How is the body of
gastropods divided?
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