Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.)
Contrast the reproduction of bacteria with that of frogs. Bacteria replicate asexually by splitting in two. Frogs reproduce sexually by producing sperm and eggs. One sperm and
Effects on Aquatic Organisms - Water Pollution Toxic water pollutants such as metals, pesticides, insecticides and chemicals affect aquatic species directly whereas the non-t
Characteristic features of Phylum Cnidaria All are aquatic animals. Radial or biradial symmetry around an oro-aboral axis, but no head. Diploblastic, with an epidermi
Carrageenan Carrageenan is a collective term for polysaccharides prepared by alkaline extraction (and modification) from red seaweed (Rhodophycae). Carrageenan is a sulfated ga
Any significant variation in the internal temperature could have damaging effects on the body's enzymes. Homeotherms or warm-blooded animals including human can however generate co
Define Classification of foods based on pH? Of these, the nature of the food, primarily the pH of food, is the most significant determinant of how severely the food will be pro
Why Physical Activity is important for weight loss? You are already aware that exercise plays an important role in initiating and sustaining weight loss along with dietary and
What is katal katal : the amount of enzyme that transforms 1 mol of substrate into product in one second.
Define Changing Trends in Dietary Intake? As a practicing dietician, you must be sensitive to the society as a whole. The fat requirements have been worked out with a premise o
Define Observation or Inference for fehling's test? An insoluble reddish brown precipitate of cuprous oxide will be obtained. The reddish brown precipitate indicates the presen
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd