INSIGHTS STATIC QUIZ 2020 - 21
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Question 1 of 5
1. Question
In which of the following trophic levels, you are likely to find the highest concentration of an organic toxin that has been found in ocean water and the aquatic animals inhabiting it?
Correct
Solution: c)
Most of the organic toxins are water insoluble and non-biodegradable.
These high persistent toxins are, therefore, transferred from lower trophic level to higher trophic level through food chain.
Incorrect
Solution: c)
Most of the organic toxins are water insoluble and non-biodegradable.
These high persistent toxins are, therefore, transferred from lower trophic level to higher trophic level through food chain.
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Question 2 of 5
2. Question
Which of the following best describes an Indicator species?
Correct
Solution: a)
Indicator species, organism—often a microorganism or a plant—that serves as a measure of the environmental conditions that exist in a given locale.
Example – Lichens: Quality of air can be determined based on its presence.
Incorrect
Solution: a)
Indicator species, organism—often a microorganism or a plant—that serves as a measure of the environmental conditions that exist in a given locale.
Example – Lichens: Quality of air can be determined based on its presence.
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Question 3 of 5
3. Question
Consider the following statements regarding Vegetative Propagation.
- Plants raised by vegetative propagation can bear flowers and fruits earlier than those produced from seeds.
- Vegetative propagation is not possible from the plants that have lost the capacity to produce seeds.
- Plants produced through vegetative propagation are genetically similar enough to the parent plant.
Which of the above statements is/are correct?
Correct
Solution: b)
There are many plants in which parts like the root, stem and leaves develop into new plants under appropriate conditions. This property of vegetative propagation is used in methods such as layering or grafting to grow many plants like sugarcane, roses, or grapes for agricultural purposes. Plants raised by vegetative propagation can bear flowers and fruits earlier than those produced from seeds. Such methods also make possible the propagation of plants such as banana, orange, rose and jasmine that have lost the capacity to produce seeds. Another advantage of vegetative propagation is that all plants produced are
genetically similar enough to the parent plant to have all its characteristics.
Incorrect
Solution: b)
There are many plants in which parts like the root, stem and leaves develop into new plants under appropriate conditions. This property of vegetative propagation is used in methods such as layering or grafting to grow many plants like sugarcane, roses, or grapes for agricultural purposes. Plants raised by vegetative propagation can bear flowers and fruits earlier than those produced from seeds. Such methods also make possible the propagation of plants such as banana, orange, rose and jasmine that have lost the capacity to produce seeds. Another advantage of vegetative propagation is that all plants produced are
genetically similar enough to the parent plant to have all its characteristics.
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Question 4 of 5
4. Question
An ecological pyramid is a diagrammatic presentation to describe trophic levels. How does the knowledge of ecological pyramid can help us in conservation of an ecosystem?
- It helps us to identify bio-accumulation.
- It helps us to identify bio-magnification.
- It helps us to recognize an invasive species.
Select the correct answer code:
Correct
Solution: b)
Ecological pyramid doesn’t give evidence on introduction of new species.
Incorrect
Solution: b)
Ecological pyramid doesn’t give evidence on introduction of new species.
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Question 5 of 5
5. Question
Birds Following Army Ants is an example for which of the following types of symbiotic relationship between organisms?
Correct
Solution: c)
Commensalism is a type of symbiotic relationship between organisms in which one organism benefits without harming the other.
Many birds form a commensal relationship with some species of ants like the army ants. A great number of army ants trail on the forest floor, and while moving, stir up many insects lying in their path. The birds follow these army ants and eat up the insects that try to escape from them. The birds benefit by catching their prey easily, while the army ants are totally unaffected.
Incorrect
Solution: c)
Commensalism is a type of symbiotic relationship between organisms in which one organism benefits without harming the other.
Many birds form a commensal relationship with some species of ants like the army ants. A great number of army ants trail on the forest floor, and while moving, stir up many insects lying in their path. The birds follow these army ants and eat up the insects that try to escape from them. The birds benefit by catching their prey easily, while the army ants are totally unaffected.
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