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BLG 144 (83)
Ron Babin (38)

parasites 1

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BLG 144
Ron Babin

Parasites and Parasitism  Parasites (endo-) or (ecto-) feed on living organisms while causing harm  They gain benefits from them (e.g. unlimited supply of nutrients, H2O, constant temp)  Can be bacteria, protoctists, viruses, fungi, arthropods, platyhelminthes  Have structural and functional adoptions to their lifecycle o Specialised reproductive strategies o Modification of mouthparts, digestive enzymes and enzymes to allow attachment to the host and utilisation of host's food supply, blood or tissues o Resist attack by immune system o Reduction of unnecessary sensory organs and locomotory organs in the adult stage, as they live in protected, optimum conditions Plasmodium (Malarial parasite)  Single celled, intracellular parasite of the kingdom Proctista (class protozoa) o Development requires 2 hosts for its lifecycle o Female mosquito (unaffected) and human (affected) o Parasite is transferred by bites from the female mosquito o Mosquito releases anti-coagulants when piercing skin / prevents blot clotting o Parasites is injected into human in the form of sporozoites o If the human is infected with the mala
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