Consider the two given statements:
I:
The life cycles of endoparasites are more complex than that of the ectoparasites.
II:
The morphological and anatomical features of endoparasites are greatly simplified.
1.
Both I and II are correct and II explains I
2.
Both I and II are correct but II does not explain I
3.
I is correct but II is incorrect
4.
Both I and II are incorrect
Subtopic: Â Population Interactions: Parasitism |
 53%
From NCERT
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According to the ISFR [India State of Forest Report] 2021, what percent of total geographic area of India is the forest cover?
1. 21.7
2. 33.33
3. 50
4. 66.66
1. 21.7
2. 33.33
3. 50
4. 66.66
 61%
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Temperature is the most important environmental factor for organisms because:
| 1. | it affects enzyme kinetics |
| 2. | its availability is closely linked to the availability of light |
| 3. | it causes more water to be available in oceans |
| 4. | vast majority of organisms are eurythermals |
Subtopic: Â Abiotic Factors: Temperature (OLD NCERT) |
 81%
From NCERT
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For which of the following animals will thermoregulation be the most energetically expensive?
1. Elephant
2. Humming-bird
3. Rabbit
4. Horse
1. Elephant
2. Humming-bird
3. Rabbit
4. Horse
Subtopic: Â Abiotic Factors: Temperature (OLD NCERT) |
 83%
From NCERT
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To overcome short duration stressful conditions, organism may escape the stressful conditions in time. All the following will be example for this strategy except:
1. Hibernation
2. Aestivation
3. Migration
4. Diapause
1. Hibernation
2. Aestivation
3. Migration
4. Diapause
Subtopic: Â Response of Organisms to Abiotic Factors (OLD NCERT) |
 73%
From NCERT
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Most birds and mammals:
| 1. | breed many times during their lifetime and produce a small number of large-sized offspring. |
| 2. | breed only once during their lifetime and produce a small number of large-sized offspring. |
| 3. | breed many times during their lifetime and produce a large number of small-sized offspring. |
| 4. | breed only once during their lifetime and produce a large number of small-sized offspring. |
Subtopic: Â Life History Variations |
 75%
From NCERT
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Cattle and goats are not seen browsing on Calotropis growing in abandoned fields because:
| 1. | the plant has a large number of thorns. |
| 2. | the plant produces toxic cardiac glycosides. |
| 3. | the plant leaves secrete a lot of distasteful mucilage. |
| 4. | the plant produces secondary metabolite strychnine. |
Subtopic: Â Population Interactions: Predation |
 92%
From NCERT
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In accordance with their lifestyles, parasites evolved special adaptations that do not include:
| 1. | the loss of unnecessary sense organs |
| 2. | presence of adhesive organs or suckers to cling on to the host |
| 3. | loss of digestive system |
| 4. | low reproductive capacity. |
Subtopic: Â Population Interactions: Parasitism |
 86%
From NCERT
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Which of the following is not an example of commensalism?
1. An orchid growing as an epiphyte on a mango branch
2. Barnacles growing on the back of a whale
3. Cuckoo laying eggs in the nests of crow
4. Clown fish living among the tentacles of sea anemone
1. An orchid growing as an epiphyte on a mango branch
2. Barnacles growing on the back of a whale
3. Cuckoo laying eggs in the nests of crow
4. Clown fish living among the tentacles of sea anemone
Subtopic: Â Population Interactions: Commensalism, Protocooperation & Mutualism |
 87%
From NCERT
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Organisms that are highly valuable in learning about phloem transport are:
1. Aphids
2. Humming birds
3. Leaf miners
4. Caterpillars
1. Aphids
2. Humming birds
3. Leaf miners
4. Caterpillars
Subtopic: Â Life History Variations |
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