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what do you determine by mantlea thin sheetlike membranous extension of visceral mass of molluscs which forms two flaps of skin mantle secretes the
what is the significance of malpighian tubulesexcretory structures found in insects and some spiders though similar in appearance and function the
elaborate the following term in detail - macronucleusone of two types of dimorphic nuclei found in ciliate protozoans macronucleus contains multiple
state the term in broad - lunulein sand dollars notches or holes which pass through the body of the animal their function is not fully understood
what is the concept of lophophorea unique double ring of hollow ciliated tentacles that surround the oral opening in some animal phyla there is some
determine the term - leuconoid spongethe most complex of the three different sponge architectures choanocytes are found in chambers and there is not
what do you understand by larval amplificationa form of asexual reproduction where during life cycle a single larval organism can produce large
state the term in detail hydrostatic skeletonformed from a fluid-filled and closed cavity surrounded by a body wall comprising muscles oriented in
explain the following terms in detail - homology homologousstructures that have a similar evolutionary origin however different functions the wing of
what do you understand by heterotrophicorganisms which are not capable of converting light into chemical energy they should consume other organisms
what is hemocoel explain in detailprinciple body cavity in molluscs and arthropods remnant of the blastocoel it forms part of open circulatory system
elaborate the term - gill slitslateral opening in the wall of pharynx which allows water to enter into mouth and exit through the pharynx this is one
describe the concept of gastrulationduring embryological development this stage results in blastulas conversion into a gastrula cells migrate toward
describe gastrovascular cavity in detailthe name given to the internal cavity of cnidarians a blind-ended incomplete gut with only one opening food
what do you understand by flagellaa cellular hairlike locomotory structure which comprise an extension of the plasma membrane surrounding a 92
elaborate extracorporial in detailoutside of the body an example is extracorporial digestion found in some animals where digestive enzymes are
what do you understand by exoskeletonsupporting structures of skeleton not surrounded by the body endoskeletal elements are secreted by an underlying
determine the term epitheliomuscular cellcells which line outer surface of cnidarians these cell have two functions first is to form the outer body
explain endoskeleton in detailsupporting structures of the skeleton surrounded by the body tissues as a consequence there is living tissue on all
what is the significance of elastic capsule chromatophorespecialized pigmented cells on surface of the cephalopods that by changing their shape
state diploblastic in brieforganisms formed from only two primitive cell layers- ectoderm and endoderm though there may be some type of a matrix
what do you understand by dimorphic nucleiorganization of the nuclear material typical of ciliates there is always a single small micronucleus and
factors affecting fertilizer requirements the rapid increase in the use of fertilizers is based on the fact that large profits are obtained from
state the amount of micronutrients in fertilizers the amount of micronutrients in fertilizers must be much more carefully controlled than the
illustrate the term - digestive caecuma blind-ended pouch which extends from main digestive tract digestive ceca may be the sites for final digestion