Select the correct option Assertion Q. due to fragmentation in Planaria, each part develops the remaining body parts and becomes a complete animal Reason R. Differentiated tissue present in each broken part of Planaria undergoes dediferentiation and then differentiation in regeneration.

Assertion 'Q': Due to fragmentation in Planaria, each part develops the remaining body parts and becomes a complete animal. Reasons 'R': Differentiated tissue present in each broken part of Planaria undergoes dedifferentiation and then differentiation for regeneration On the basis of assertion 'Q' and reason 'R', select the correct option.

Which option shows all correct statements about fragmentation ? (I) Fragmentation is observed in spongilla, Sycon and Hydra (II) The body become fragmented in to several distinct parts. (III) Each part develops the remaining body parts and becomes a complete animals. (A) (I) (B) (I), (II) and (III) (C) (II) and (III) (D) (III)

Read the assertion and reson carefully to mark the correct option out of the options given below: Assertion : In man , only peripheral nervous system is present . Reason : The peripheral nervous system includes nerves coursing between the central nervous system and and different parts of the body .

These questions consist of two statements each printed as Assertoin and Reason. While answering these questions, you are requied to choose any one of the following four responses. If both Assertion and Reason are true and Reason is correct explanation of Assertion If both Assertion and REason are true but Reason is not correct explanation of Assertion If Assertion is true but Reason is false If both Assertion and Reason are false Assertion: A network of food chains existing together in an ecosystem is known as a food web. Reason: An animal like cannot be a part of a food web.

Refer to the given diagrammatic represention of parts of two different types of tissues , P and Q. Read the following statements regarding these tissues and select the correct statements . (i)P is a plant whereas Q is an animal tissue. (ii)P is the major water conducting tissue in vascular plants and provides mechanical strength to plant body. (iii)Q is a specialised tissue in animals for receiving stimuli and transmitting messages . (iv) P is composed of all dead cells whereas Q is composed of all living cells.