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what are respiratory pigments what is the respiratory pigment present in some arthropods which is the analogous molecule in humans respiratory
what is the type of circulatory system present in arthropods do these animals have heart and respiratory pigments in arthropods the respiratory
in arthropods why isnt gas exchange done through cutaneous diffusionin arthropods the impermeability of the exoskeleton makes the passage of gases
what is the type of digestive system present in beings of the phylum arthropoda are these animals protostomes or deuterostomesthe digestive tube of
how does the presence of exoskeleton explain the general small size of arthropodsas they have exoskeleton and periodic ecdysis the growth of
how do arthropods growbecause of the presence of exoskeleton the growth of an arthropod is periodical during the growth period the animal loses the
what is the external rigid carapace of arthropods called of which substance is it made which type of organic molecule is that substancethe external
what are the classes into which the phylum arthropoda is divided what are the three main ones and some of their representative speciesthe three major
what is the clitellum of earthtworms and where it is locatedthe clitellum is a special region of the annelid constituted by rings metameres with
how is the nervous system characterized in beings of the phylum annelida how can one compare cephalization in annelids to cephalization in nematodes
how can the excretory system of annelids be describedin each segment metamere of the being a pair of complete excretory structures called
how can the presence localization and function of muscular tissue in beings of the phylum annelida be explainedin these beings there are a
is there a respiratory pigment in the annelid bloodthe blood in beings of the phylum annelida have the respiratory pigment hemoglobin the similar
how is the respiratory system of beings of the phylum annelida characterized respiration in annelids can be cutaneous or branchial cutaneous
which are the characteristics and organs of the digestive system of earthworms related to the type of diet of these animalsearthworms eat decomposing
what is the morphological characteristic that evolutionarily approximates the beings of the phylum annelida to arthropodsthe metameric feature ie the
what is the main evolutionary novelty presented by annelidsthe main evolutionary novelty shown by the beings of the phylum annelida is the coelom the
what is the type of reproduction that occurs in roundworms what typical element do nematode sperm cells have nematodes reproduce sexually the
how is the nervous system of nematodes organized where are the neural chords located in their body roundworms have a ganglial nervous system with an
how does the excretory system of nematodes workthe metabolic residuals of nematodes are collected by two longitudinal lateral excretory channels that
compared to platyhelminthes which physiological problem have the cylindrical body of nematodes brought how was that problem solvedthe cylindrical
what is the main evolutionary innovation presented by nematodes what is the advantage of that innovationthe short evolutionary innovation of
are nematodes diploblastic or triploblastic animals just like platyhelminthes nematodes are triploblastics ie they show three germ layers ectoderm
what are the morphological similarities and differences among nematodes and annelids nematodes like annelids have a cylindrical elongated body
what is the typical morphological feature of nematodes that differentiates them from platyhelminthesnematodes are also called as roundworms as the