QUESTION 39 1. Adult Ascaris worms are found in the host\'s 1. \"A good parasite

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QUESTION 39 1. Adult Ascaris worms are found in the host's 1. "A good parasite does not kall . (B words) 1. The blood fluke, Schistosoma, is QUESTION 40 QUESTION 41 c -an endoparasite and a Monogenean C an endoparasite and a Digenean C anectoparasite and a Digenean C danectoparasite and a Monogenean C None of the choices are correct. QUESTION 42 l he nervous system of a planar un- 1, C consists of a pair of interconnected nerve nets. consists of a bi-lobed "brain" of ganglion cells leading to a la dder-type nerve network r consists ofa bi-lobed "brain-ofgangon cells and a single dorsal nerve chord. C d consists of an antenior bi-lobed brain, spinal column, as well as sensory and motor neurons lack cephalization because oftheir endoparasitic existence QUESTION 43 1- Organisms with three germ layers are termed l

Explanation / Answer

39) Adult ascaris worms found in the host small intestine. Ascaris is small intestine roundworm affect human and cause disease ascariasis. Its embryonated egg present in external environment that transmitted into human via contaminated food and water. This egg converted into larva stage in intestine of human than enter into blood stream from their in go into heart or lungs become mature and swolloed again into small intestine.

40) A good parasite does not kill its host. Parasites are organism that liveoff the life energy of other host organism feeding on these host to sustain their own existance. A good parasite used support and energy from host and also provide benefit to host.

41) answer is E. None of choices are correct. S. Japonicum , blood fluke, are parasitic flatworm responsible for a highly significantly group of infections in human termed schistosomiasis. It live inside the body of host thats why called endoparasite but monogenean and digenan are internal and external platyhelminthis of fishes. Thats why none of the choices are correct.

42) the nervous system of planerium consist of bilobed brain of ganglion cells leading to a ladder type nerve network. It is a ganglion under the eyespots, two group of nerve cell bodies or cerebral ganglia which is called brain. From ganglion , two nerve cord are extended to the end of tail . Two nerve running parallel to each other are connecting to these cord at 90 degree angle so that nerve system resemble as ladder.

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