The Living World

Kaziranga National Park is famous for :

• Rhinoceros

• Tiger

• Asiatic lion

• Nilgai

Enzymes are absent in

• algae

• plants

• virus

• bacteria

Assertion : Senescence is the time when age associated defects are manifested.

Reason : Certain genes may be undergoing sequential switching on and off during one's life.

• If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

• If both Assertion and Reason are true but the Reason is not the correct explanation of the assertion

• If Assertion is true but Reason is false

• If both Assertion and Reason are false

Assertion : Living organisms are regarded as closed systems.

Reason : Energy of living organisms cannot be lost or gained from the environment.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both the assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both the assertion and reason are false.

Incomplete division of egg during cleavage is known as

• meroblastic

•  holoblastic

• meridional

• spiral

Periyar sanctuary is located in

• Madhya Pradesh

• Kerala

• Uttar Pradesh

• Assam

Assertion : Study of biology requires basic knowledge of chemistry and physics.

Reason : Living organisms are made up of atoms and molecules which follow chemical and physical laws.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both the assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both the assertion and reason are false.

How many sperms are formed by four primary spermatocytes

• 1

• 4

• 16

• 32

Assertion : Systematics is the branch of biology that deals with classification of living organism.

Reason : The aim of classification is to group the organisms in an orderly manner.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both the assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both the assertion and reason are false.

Assertion : Death is regarded as the most important regulatory process on earth. 

Reason : It avoids overcrowding, caused continuous reproduction.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both the assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both the assertion and reason are false