Select Question Set:
Q. No.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: Major Abiotic Factors |
81%
Level 1: 80%+
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: Major Abiotic Factors |
82%
Level 1: 80%+
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
73%
Level 2: 60%+
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: Life History Variations |
77%
Level 2: 60%+
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: Population Interactions: Predation |
92%
Level 1: 80%+
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: Population Interactions: Parasitism |
86%
Level 1: 80%+
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: Population Interactions: Commensalism, Protocooperation & Mutualism |
88%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
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: Life History Variations |
Level 3: 35%-60%
Please attempt this question first.
Hints
If N is the population size, r is the intrinsic growth rate, K is the carrying capacity of the local environment, and dN/dt is the rate of change in population with time, then the Verhulst-Pearl Logistic growth equation is correctly written as:
| 1. | dN/dt = rN[1- N/K] | 2. | dN/dt = rN[1- K/N] |
| 3. | dN/dt = rN + [1- N/K] | 4. | dN/dt = rN + [1- K/N] |
Subtopic: Population: Exponential Growth Model | Population: Logistic Growth Model |
70%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Thermoregulation is likely to be energetically most expensive for:
1. Blue whale
2. Humans
3. Humming birds
4. Elephant
1. Blue whale
2. Humans
3. Humming birds
4. Elephant
Subtopic: Major Abiotic Factors |
84%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Select Question Set:
© 2025 GoodEd Technologies Pvt. Ltd.