Animal Kingdom

Which of the following is not a characteristic of chordates?

1. Presence of post anal part (tail)
2. Presence of notochord
3. Central nervous system is dorsal
4. Absence of gills

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the correct answer from the options given below:

1. (A) is true but (R) is false
2. (A) is false but (R) is true
3. Both (A) and (R) are true and (R) is the correct explanation of (A)
4. Both (A) and (R) are true but (R) is not the correct explanation of (A)

All living members of the class Cyclostomata are :

1. Symbiotic
2. Ectoparasite
3. Free living
4. Endoparasite

Role of the water vascular system in Echinoderms is : Choose the correct answer from the options given below :

1. B and C Only
2. B, D and E Only
3. A and B Only
4. A and C Only

While trying to find out the characteristic of a newly found animal, a researcher did the histology of an adult animal and observed a cavity with presence of mesodermal tissue towards the body wall but no mesodermal tissue was observed towards the alimentary canal. What could be the possible coelom of that animal?

1. Schizocoelomate
2. Spongocoelomate
3. Acoelomate
4. Pseudocoelomate

Match List I with List II: Choose the correct answer from the options given below :

1. A-IV, B-II, C-III, D-I
2. A-II, B-I, C-IV, D-III
3. A-II, B-IV, C-I, D-III
4. A-IV, B-III, C-II, D-I

Consider the following statements : Choose the correct answer from the options given below :

1. B only
2. A only
3. C only
4. D only

Match List I with List II : Choose the correct answer from the options given below :

1. A-II, B-I, C-III, D-IV
2. A-III, B-I, C-II, D-IV
3. A-IV, B-I, C-II, D-III
4. A-III, B-II, C-I, D-IV

The following are the statements about non-chordates: Choose the most appropriate answer from the options given below:

1. A & C only
2. A, B & D only
3. B, D & E only
4. B, C & D only