Q.

Given below are two statements.

Statement I: Vertebrates possess a well-developed endocrine system.

Statement II: Endocrine system is absent in all invertebrates.

In the light of the above statements, choose the most appropriate answer from the options given below.

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a

Statement I is incorrect but statement II is correct. 

b

Both statement I and statement II are correct.

c

Statement I is correct but statement II is incorrect.

d

Both statement I and statement II are incorrect.

answer is C.

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Detailed Solution

Invertebrates possess very simple endocrine systems with few hormones. Vertebrates possess a well-developed endocrine system. A large number of chemicals act as hormones and provide coordination in vertebrates. 

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