Identify the incorrect statement:
1. Medusa of Scyphozoans are called as jelly fishes.
2. Ctenophores are the largest animals that move with the help of cilia.
3. Flat worms that have a digestive cavity, have an incomplete gut.
4. Nematodes are covered with thick cuticle that does not moult.
Match Nematode with their common names and choose answer from codes given below:
|
|
Nematode |
|
Common names |
|
I. |
Ancylostoma duodenale |
1. |
Pin worm |
|
II. |
Enterobius vermicularis |
2. |
Filaria worm |
|
III. |
Trichuris trichiura |
3. |
Loa loa |
|
IV. |
Dracunculus medinensis |
4. |
Whip worm |
|
V. |
Onchocerca volvulus |
5. |
Hook worm |
|
VI. |
Wuchereria bancrofti |
6. |
Guinea worm |
Codes:
|
|
I. |
II. |
III. |
IV. |
V. |
VI. |
|
1. |
5 |
1 |
4 |
6 |
3 |
2 |
|
2. |
5 |
4 |
3 |
6 |
1 |
2 |
|
3. |
5 |
3 |
4 |
1 |
6 |
2 |
|
4. |
5 |
6 |
4 |
3 |
1 |
2 |
Infection of Ascaris usually occurs by
(1) drinking water containing egg of Ascaris
(2) eating imperfectly cooked pork
(3) tse-tse fly
(4) mosquito bite
Which one of the following statements about certain given animals is correct?
1. Round worms (Aschelminthes) are pseudocoelomates
2. Molluscs are acoelomates
3. Insects are pseudocoelomates
4. Flat worms (Platyhelminthes) are coelomates
Which one of the following groups of animals is bilaterally symmetrical and triploblastic?
(1) Coelenterates (cnidarians)
(2) Aschelminthes (round worms)
(3) Ctenophores
(4) Sponges
Which of the following statements about Aschelminthes is incorrect
(1) They are pseudocoelomate
(2) Digestive system is complete
(3) Circulatory and respiratory system is well developed
(4) Distinctive features include –often worm shaped, elongated
Digestive system consists of a mouth and anus in which animals
(1) Ancylostoma
(2) Wuchereria
(3) Adamsia
(4) Both (1) and (2)
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