The relationship between Nitrosomonas and Nitrobacter can be best described as:
1. Mutualism
2. Commensalism
3. Competition
4. Amensalism
Please attempt this question first.
Hints
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 |
 52%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
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%
Please attempt this question first.
Hints
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
Please attempt this question first.
Hints
Please attempt this question first.
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
Please attempt this question first.
Hints
Please attempt this question first.
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
Please attempt this question first.
Hints
Please attempt this question first.
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 |
 74%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
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
Please attempt this question first.
Hints
Please attempt this question first.
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
Please attempt this question first.
Hints
Please attempt this question first.
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 |
 86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
© 2024 GoodEd Technologies Pvt. Ltd.