INSIGHTS STATIC QUIZ 2020 - 21
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Question 1 of 5
1. Question
Bioluminescence is the property of a living organism to produce and emit light. Which of the following organisms show the property of bioluminescence?
- Animals
- Plants
- Fungi
- Bacteria
Select the correct answer code:
Correct
Solution: d)
Bioluminescence is the property of a living organism to produce and emit light. “Animals, plants, fungi and bacteria show bioluminescence.
Incorrect
Solution: d)
Bioluminescence is the property of a living organism to produce and emit light. “Animals, plants, fungi and bacteria show bioluminescence.
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Question 2 of 5
2. Question
Consider the following statements regarding Parasitism.
- Parasitism occurs when two organisms interact, but while one benefits, the other experiences harm.
- Tapeworm attaching itself to the intestine of a cow is an example of Parasitism.
- The parasite always kill the host.
Which of the above statements is/are correct?
Correct
Solution: a)
A parasite is an organism that lives in or on another living organism, deriving nutrients from it. In this relationship the parasite benefits, but the organism being fed upon, the host, is harmed. The host is usually weakened by the parasite as it siphons resources the host would normally use to maintain itself. The parasite, however, is unlikely to kill the host. This is because the parasite needs the host to complete its reproductive cycle by spreading to another host.
The reproductive cycles of parasites are often very complex, sometimes requiring more than one host species. A tapeworm is a parasite that causes disease in humans when contaminated, undercooked meat such as pork, fish, or beef is consumed. The tapeworm can live inside the intestine of the host for several years, benefiting from the food the host is bringing into its gut by eating. The parasite moves from species to species as it requires two hosts to complete its life cycle.
Incorrect
Solution: a)
A parasite is an organism that lives in or on another living organism, deriving nutrients from it. In this relationship the parasite benefits, but the organism being fed upon, the host, is harmed. The host is usually weakened by the parasite as it siphons resources the host would normally use to maintain itself. The parasite, however, is unlikely to kill the host. This is because the parasite needs the host to complete its reproductive cycle by spreading to another host.
The reproductive cycles of parasites are often very complex, sometimes requiring more than one host species. A tapeworm is a parasite that causes disease in humans when contaminated, undercooked meat such as pork, fish, or beef is consumed. The tapeworm can live inside the intestine of the host for several years, benefiting from the food the host is bringing into its gut by eating. The parasite moves from species to species as it requires two hosts to complete its life cycle.
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Question 3 of 5
3. Question
Which of the following are the Biodiversity Hotspots in India?
- Western Ghats
- Himalayas
- Indo-Bhutan region
- Sundaland
Select the correct answer code:
Correct
Solution: c)
India has some of the world’s most biodiverse regions. It hosts 4 biodiversity hotspots: the Himalayas, the Western Ghats, the Indo-Burma region and the Sundaland (Includes group of Islands).
Incorrect
Solution: c)
India has some of the world’s most biodiverse regions. It hosts 4 biodiversity hotspots: the Himalayas, the Western Ghats, the Indo-Burma region and the Sundaland (Includes group of Islands).
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Question 4 of 5
4. Question
To avoid unfavourable conditions, which of the following enter into diapause, a stage of suspended development.
Correct
Solution: a)
In animals, the organism, if unable to migrate, might avoid the stress by escaping in time. The familiar case of bears going into hibernation during winter is an example of escape in time. Some snails and fish go into aestivation to avoid summer–related problems-heat and dessication. Under unfavourable conditions many zooplankton species in lakes and ponds are known to enter diapause, a stage of suspended development.
Incorrect
Solution: a)
In animals, the organism, if unable to migrate, might avoid the stress by escaping in time. The familiar case of bears going into hibernation during winter is an example of escape in time. Some snails and fish go into aestivation to avoid summer–related problems-heat and dessication. Under unfavourable conditions many zooplankton species in lakes and ponds are known to enter diapause, a stage of suspended development.
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Question 5 of 5
5. Question
Ecological balance may be disturbed due to the
- Introduction of new species
- Natural hazards
- Anthropogenic pollution
Select the correct answer code:
Correct
Solution: d)
Exotic species may disturb the local food chain or create scarcity of competitive resources.
Natural hazards like tsunami or cyclone can uproot coastal mangroves.
In the plants, any disturbance in the native forests such as clearing the forest causes a change in the species distribution.
Incorrect
Solution: d)
Exotic species may disturb the local food chain or create scarcity of competitive resources.
Natural hazards like tsunami or cyclone can uproot coastal mangroves.
In the plants, any disturbance in the native forests such as clearing the forest causes a change in the species distribution.
