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q what is the kind of digestion that occurs in cnidariansthese animals have a digestive cavity and they make intracellular and extracellular
q why is the digestive system of these animals called incompleteincomplete digestive system is in that which the digestive cavity has only one
q which are the germ layers present in cnidarians which tissues of the animal do they originatethese beings present endoderm and ectoderm two germ
q concerning tissue complexity how dissimilar are cnidarians from poriferansporiferans present only some dispersed specialized cells with no tissue
q what are the two major morphological patterns of cnidarians concerning locomotion how do these forms differentiate from each othermorphologically
q what are few examples of cnidarians in which environments can these animals be foundhydra jellyfish sea anemones and corals are good examples all
q sponge identity card how are sponges characterized according to example of representing beings basic morphology type of symmetry embryonic germ
q what is the economic importance of spongesa few chemical substances secreted by sponges have anti-inflammatory anti-tumoral activities and
q what is the evolutionary advantage of the occurrence of larval stage and sperm cells in the life cycle of spongesthe sexual reproduction in sponges
q is reproduction in sponges asexual or sexualreproduction in sponges can be asexual by budding fragmentation or gemmation regeneration or sexual
q do sponges have circulatory nervous and excretory systemssponges do not have a nervous system neither excretory system nor circulatory
q how are gases exchanged in spongesthe gas exchange in sponges happens by diffusion from the exterior to the cells that absorb molecular oxygen and
q how are animals divided according to their kind of digestive processat a distance from sponges that do not have a digestive cavity where
q concerning digestion how are poriferans characterizedsponges are diverse from other animals since they present only intracellular digestion do they
explain the genotypes for each blood type and how this is an example of codominance blood type- a ab b
q what are the major cells of which poriferans are madesponges have their external wall covered by flat cells called pinacocytes and having pores
q how do sponges try to protect themselves against harm from the environment is that method rudimentary or efficientsponges can close their pores to
q how does water move in sponges what is the function of the pores in these animalssponges are filtering beings they make water enter their bodies by
q what is the usual shape of poriferanssponges have bodies in the form of globes or tubular vases open in the upper extremity they have a porous
q what is the way of life of spongessponges live exclusively in an aquatic environment and they are attached by their base to a substrate fixation
q what are the poriferansthe phyla porifera include the simplest creatures of the animal kingdom sponges are aquatic sessile beings they are not able
q what is an evolutionary tree is there a precise evolutionary tree known by science that explains the emergence and origin of every type of living
q what are the five classes of vertebrates to which of these do human beings belongthe five classes of vertebrates are amphibians reptiles fishes
q what are the two major divisions of the chordate phylumchordates are divided into vertebrates and protochordates urochordates and cephalochordatesq
q which are the beings that form the kingdom animalia what are the two big groups into which this kingdom is dividedthe kingdom animalia is the