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12th Standard Zoology - Biodiversity and its Conservation English Medium Free Online Test One Mark Questions 2020 - 2021

Published on: 05/11/2020

Download Tamil Nadu 12th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.

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Std: 12th Standard - Biology

chapter: - Model Question paper

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Questions:

Multiple Choice Question

9 x 1 = 9

Which is considered as the Biogeographical Gateway of India?

(a)

Himalayas

(b)

Andaman & Nicober

(c)

North - East India

(d)

Mumbai

Which is not an indice of species diversity?

(a)

Alpha diversity

(b)

Beta diversity

(c)

Delta diversity

(d)

Gamma diversity

Kaziranga in Assam refers to a ______________

(a)

Protected areas

(b)

Wild life sanctuary

(c)

National park

(d)

both a and c

Red list has _____________ categories.

(a)

(b)

(c)

(d)

_____________ is not a threat to biodiversity.

(a)

Fragmentation

(b)

Habitat loss

(c)

Species diversity

(d)

Extinction

There are ________ mega biodiversity countries in the world

(a)

(b)

(c)

(d)

Assertion(A): The Environmental conditions of the tropics are favourable for speciation and diversity of organisms.
Reason(R): The climate seasons, temperature, humidity and photoperiod are more or less stable and congenial.

(a)

Both Assertion and Reason are true and Reason explains Assertion correctly.

(b)

Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

(c)

Assertion is true, but Reason is false.

(d)

Both Assertion and Reason are false.

Which one of the following is not coming under insitu conservation

(a)

Sanctuaries

(b)