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Which of the following countries has the highest biodiversity?
(a) Brazil has the highest biodiversity because it is located near equator.
Which of the following is not a cause for loss of biodiversity?
(c) Destruction of habitat, invasion by alien species, and over-exploitation, of natural resources are cause for loss of biodiversity.
Which of the following is not an invasive alien species in the Indian context?
(b) Carrot grass (Parthenium), Lantana and water hyacinth (Eichhomia crassipe) are invasive weeds that cause environment damage.
Where among the following will you find pitcher plant?
(a) Pitcher plants are found at rain forest’ of North-East India.
Which one of the following is not a major characteristic feature of biodiversity hot spots?
(c) Characteristic feature of biodiversity hot spots are large number of species, abundance of endemic species and mostly located in the tropics.
Match column I with column II and choose the correct option
\(
\begin{array}{ll}
\text { Column I } & \text { Column II } \\
\text { A. Dodo } & \text { 1. Africa } \\
\text { B. Quagga } & \text { 2. Russia } \\
\text { C. Thylacine } & \text { 3. Mauritius } \\
\text { D. Steller’s Sea Cow } & \text { 4. Australia }
\end{array}
\)
Choose the correct match from the following:
The correct option is D A-3, B-1, C-4, D-2
Earth is a treasure of a large number of species of plants, animals, fungi and various other microorganisms. Variety of species are spread across the globe in different geographical areas. This variety of species on our planet and the genetic variations seen within the species is called biodiversity.
What is common to the following plants: Nepenthes, Psilotum, Rauwoljia and Aconitum?
(c) Nepenthes, Psilotum, Rauwolfta md Aconitum, all are prone to over-exploitation.
The one-homed rhinoceros is specific to which of the following sanctuary
(c)
The answer is the option (c) Kaziranga
Explanation: Kaziranga national park is renowned for providing shelter to one-horned rhinoceros.
Amongst the animal groups given below, which one appears to be more vulnerable to extinction?
The correct option is c Amphibians
Vulnerability to extinction:
As per the current statistics, amphibians face the highest threat and vulnerability to extinction.
The threat of extinction for different species around the world is as follows:
Birds (12%)< Mammals (23%)< Gymnosperms (31%)< Amphibians (32%)
Which one of the following is an endangered plant species of India?
(d) All of the above
Explanation:
All of the plants mentioned here are India’s endangered plant species. Due to their medical and commercial importance, Rauwolfia Serpentina (sarpagandha), Santalum album, and cycles beddond are under threat of extinction.
What is common to Lantana, Eichhomia and African catfish?
(d) Lantana, Eichhomia and African catfish, all the species are neither threatened nor indigenous species of India.
The extinction of passenger pigeon was due to
(b) Humans have always depended on nature for food and shelter but when ‘need’ turns to ‘greed’ it leads to over-exploitation of natural resources. In the last 500 years many species extinctions (Steller’s sea cow, passenger’s pigeon) were due to over-exploitation by human.
Which of the following statements is correct?
(c) Steller’s sea cow is an extinct animal.
Among the ecosystem mentioned below, where can one find maximum biodiversity?
(c) Coral reefs has maximum biodiversity among above options.
Which of the following forests is known as the ‘lungs of the planet Earth’?
(c) Amazon rain forest is known as the ‘lungs of the planet Earth’.
The active chemical drug reserpine is obtained from
(b) The genetic variation shown by the medicinal plant Rauwolfia vomitoria growing in different Himalayan ranges might be in terms of potency and concentration of the active chemical (Reserpine) obtained from roots of plants.
Which of the following group exhibit more species diversity?
(d)
Which of the below mentioned regions exhibit less seasonal variations?
(a) Tropical regions exhibit less seasonal variations.
The historic convention on Biological Diversity held in Rio de Janeiro in 1992 is known as:
(b) The Earth Summit: This historical convention on biological diversity held in Rio-de-Janeiro, Brazil in 1992. Attending nations take appropriate measure for conservation of biodiversity and sustainable utilization of its benefits.
What is common to the techniques (i) in vitro fertilisation, (ii) Cryo preservation and (iii) tissue culture?
(b) Conservation of biodiversity can be broadly classified into two types: in situ (on-site) and ex situ (off site). In situ is the preferred method to maintain species of wild animals in their natural habitats. This approach helps in conservation of total ecosystem. Ex situ approaches include conservation of those organisms, whose species may become extinct or decline heavily in number (due to a variety of reasons) in their natural habitat. This includes seed banks, cryopreservation, tissue culture, in vitro fertilisation, etc.
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