There are four tiny organisms A, B, C and D. The organism A is a parasitic protozoan which causes a disease known as kala-azar. The organism B is a microscopic single-celled animal which causes malaria disease in human beings. The organism C is a unicellular animal which can change its body shape according to need, it has no fixed shape. The organism D is also a unicellular animal which is slipper-shaped having a large number of tiny hair all around its body.

(c) Name the insect which carries organism B and transmits it from one person to another.

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Solution

The insect which carries organism B and transmits it from one person to another are;
●Organism B is Plasmodium, which causes malaria.
●Plasmodium is carried by female Anopheles mosquitoes.
●Mosquitoes bite humans and transfer the parasites from one person to another.

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There are four tiny organisms A, B, C and D. organism A is a parasitic protozoan that causes a disease known as kala-azar. The organism B is a microscopic single-celled animal that causes malaria disease in human beings. The organism C is a unicellular animal that can change its body shape according to need, it has no fixed shape. The organism D is also a unicellular animal that is slipper-shaped having a large number of tiny hair all around its body.
(a) Name the organisms A, B, C and D
(b) Name one characteristic body feature of organism A.
(c) Name the insect which carries organism B and transmits it from one person to another.
(d) What name is given to the asexual method of reproduction of (i) organism A, and (ii) organism B?
(e) Where do organisms C and D live?

There are four tiny organisms A, B, C and D. The organism A is a parasitic protozoan which causes a disease known as kala-azar. The organism B is a microscopic single-celled animal which causes malaria disease in human beings. The organism C is a unicellular animal which can change its body shape according to need, it has no fixed shape. The organism D is also a unicellular animal which is slipper-shaped having a large number of tiny hair all around its body.

(b) Name one characteristic body feature of organism A.

(a) Name the organisms A, B, C and D

(d) What name is given to the asexual method of reproduction of (i) organism A, and (ii) organism B?

Q. There are four tiny organisms A, B, C and D. The organism A is a parasitic protozoan which causes a disease known as kala-azar. The organism B is a microscopic single-celled animal which causes malaria disease in human beings. The organism C is a unicellular animal which can change its body shape according to need, it has no fixed shape. The organism D is also a unicellular animal which is slipper-shaped having a large number of tiny hair all around its body.
(a) Name the organisms A, B, C and D
(b) Name one characteristic body feature of organism A.
(c) Name the insect which carries organism B and transmits it from one person to another.
(d) What name is given to the asexual method of reproduction of (i) organism A, and (ii) organism B?
(e) Where do organisms C and D live?

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Protozoans

Standard XII Biology

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The insect which carries organism B and transmits it from one person to another are; ●Organism B is Plasmodium, which causes malaria. ●Plasmodium is carried by female Anopheles mosquitoes. ●Mosquitoes bite humans and transfer the parasites from one person to another.

The insect which carries organism B and transmits it from one person to another are;
●Organism B is Plasmodium, which causes malaria.
●Plasmodium is carried by female Anopheles mosquitoes.
●Mosquitoes bite humans and transfer the parasites from one person to another.