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Q. Type specimen of class enteropneusta?
Examine the specimen and note the following features:1. Balanoglossus has a soft, elongated, worm-like body which has a ciliated surface.2. Body length reaches 10-50 cms and is divided into short conical proboscis, , collar and long trunk.3. Proboscis is cylindrical, tapering and muscular. Near the base is a proboscis pore which is the opening of the coelom (present within the proboscis) to the exterior.4: Collar is a short, cylindrical, muscular band enclosing a pair of coelomic cavities (collar coelom). The collar opens by a pair of collar pores on the dorsal ; surface. The rim of the collar encloses the mouth which is permanently open. ,5. The trunk is superficially ringed and divided into 3 parts (a) anterior branchiogenital part containing genital ridge that carry gonads. This part can , be demarcated from the outside as it has gill-slits but the contents cannot be seen without dissection. (b) hepatic region. (c) the posterior end which is the trunk region.6. The mouth lies at the base of proboscis and is encircled by the edge of the collar.7. In the hepatic region are present double rows of hepatic caeca.8. Alimentary canal is straight and anus is at the end of the trunk. (Sexes are separate and fertilization is external. Development includes a free swimming pelagic larva called tornaria larva.)
Q. Vitamins requirement during myocardial infarction? The requirement of vitamins and minerals is largely governed by the existing nutritional status and the clinical parameter
What are plasmids? Plasmids are circular DNA molecules there in the genetic material of some bacteria. They might be containing genes responsible for bacterial resistance to so
Removal of obturating material -Gutta percha . -Carrier bassed gutta perca. -silver points . - paste type. - obstructed fracture instrument .
what are some physical features of the ocean
Secondary Prevention: The various aspects of secondary prevention are: 1) Early Diagnosis and Case Finding This can be achieved by educating the public and commun
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Explain about the Food product development? Food product development is often commodity related. This type of research needs to be carried out in the pilot plants with the equi
It is mostly spread by sexual contact, blood transfers and from HIV infected mother to child.
Tanapox Tanapox infection is endemic to equatorial Africa and is extremely rare outside Africa. Tanapox was initially recognized in humans in 1957 and 1962 in Kenya. It is caused
Flexibility Exercises and Examples In flexibility exercises, movable joints allow one or more of the following types of movements. Flexion - Flexion decreases the joint ang
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