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प्रश्न
Elephantiasis is caused by
पर्याय
Wuchereria
Pinworm
Planarians
Liver flukes
उत्तर
Wuchereria
Explanation -
Wftchereria (filarial worm) is a parasitic worm belonging to Phylum Aschelminthes (Nematoda) and the causal organism of disease elephantiasis (or filariasis). The disease is spread by female Culex mosquitoes from affected individuals to healthy individuals. The disease is characterised by swelling of the legs and/or scrotum.
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संबंधित प्रश्न
Why do we classify organisms?
Give three examples of the range of variations that you see in life-forms around you.
Which do you think is a more basic characteristic for classifying organisms?
(a) The place where they live.
(b) The kind of cells they are made of. Why?
Characters of a phylum are given below. Read those carefully and answer the questions.
a. Spines of calcium carbonate are present on the body.
b. These animals are exclusively marine.
c. They perform the locomotion with the help of tube feet.
d. Their skeleton is made up of calcareous plates or spicules.
i. Animals of which phylum show the above characters?
ii. Give an example from that phylum.
iii. These animals can be classified with the help of which criteria of new system of animals classification?
Track the changes in methods of animal classification. How the methods of animal classification changed over the time?
Write any two points of differences between flat worms and round worms.
Write the characters of each of the following animals with the help of classification chart. Bath sponge, grasshopper, rohu, penguin, frog, lizard, elephant, jellyfish.
Write down two disadvantages of two kingdom classification.
How is the complexity of cell structure and their number used in classification?
Complete the flow chart.
