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q which other phylum of the animal kingdom present species with exoskeletonarthropods present exoskeleton made of chitin echinoderms do not have
q do squids and octopus have exoskeletonsquids and octopus generally do not produce external shell some squid species can have an internal shell one
q what kind of exoskeleton do some molluscs presentsome molluscs like gastropods and bivalves secrete an external calcareous carapace the shell
q how is the excretory system of molluscs characterizedmolluscs have one or two pair of spongelike nephridia similar to
q how is the large size of some cephalopods related to the kind of circulatory system they presentin cephalopods the circulatory system is closed and
q which kind of circulatory system do molluscs have how can it be compared to the respiratory system of annelidsmolluscs with the exception of
q how is the respiratory system in aquatic molluscs characterized what adaptive respiratory structure do terrestrial molluscs presentin terrestrial
q what is the radula what is the function of this organsome molluscs have a tongue-like structure with harsh saliences similar to small teeth this
q how is the body of gastropods dividedthe body of gastropods is divided into three major portions head foot and the visceral massq what is the type
q into which classes are mollusc divided what are some representing beings of each classthe phylum mollusca is divided into five main classes
q are mollusc metameric beings exclusively analyzing this feature could it be said that molluscs are evolutionarily proximal to nematodes or to
q what are the biological troubles that molluscs face due to their soft bodybecause molluscs have a soft body they are further fragile they also have
q what is the morphological feature of molluscs after which the phylum is namedthe word mollusc imply soft thing molluscs have soft bodies and this
q what are the few representatives of the phylum molluscaoctopuses snails oysters and squids are examples of molluscsq in which habitats do molluscs
q arthropod identity card how are arthropods characterized according to examples of representing beings basic morphology type of symmetry germ layers
q what are the few examples of beings of the phylum arthropoda that present a high level of behavioral sophisticationinsects like some species of
q which arthropod class is the mainly diversified animal group of the planet how can this evolutionary success be explainedthe insects are the animal
q how are the three major arthropod classes characterized according to the number of limbsmost crustaceans have five pairs of limbs arachnids present
q how are the three major arthropod classes characterized according to the body divisionin arachnids and crustaceans the head is fused with the
q how are the three major arthropod classes characterized according to the presence of antennaecrustaceans have two pairs of antennae insects have
q most insects have wings which is the other animal phylum that contains creatures with analogous organsbesides the phylum arthropoda another animal
q how are the three major arthropod classes characterized according to the presence of wingsarachnids and crustaceans do not have wings most insects
q is the stage when an insect larva is within a cocoon a stage of total biological inactivitythe period when the larva is inside its cocoon is a time
q what are imago and nymphnymphs are larvae of hemimetabolic insects like grasshoppers they are very similar to the adult insect although smaller in
q how are the major classes of arthropods classified according to the presence of larval stage in their embryonic developmentin crustaceans there are