Q. No.Frog feeding on an herbivorous insect is:
| 1. | Primary consumer | 2. | Secondary consumer |
| 3. | Tertiary consumer | 4. | Top carnivore |
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Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem.
1. Frog
2. Phytoplankton
3. Fish
4. Zooplankton
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Identify the possible link "A" in the following food chain :
Plant → insect - frog → "A" → Eagle
1. Rabbit
2. WoIf
3. Cobra
4. Parrot
Identify the likely organisms (a), (b), (c) and (d) in the food web shown below:
Options
|
(a) |
(b) |
(c) |
(d) |
|
|
1. |
deer |
rabbit |
frog |
rat |
|
2. |
dog |
squirrel |
bat |
deer |
|
3. |
rat |
dog |
tortoise |
crow |
|
4. |
squirrel |
cat |
rat |
pigeon |
Primary carnivores are, most aptly, characterized as:
| 1. | Secondary producers | 2. | Primary consumers |
| 3. | Secondary consumers | 4. | Tertiary consumers |
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The detritus food chain:
| I: | begins with dead organic matter |
| II: | is the major conduit of energy flow in aquatic ecosystem. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
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In a terrestrial ecosystem, a much larger fraction of energy flows through the:
| 1. | DFC | 2. | GFC |
| 3. | Either of DFC or GFC | 4. | Nither of DFC nor GFC |
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In an aquatic food chain, zooplankton occupy which trophic level?
| 1. | First | 2. | Second |
| 3. | Third | 4. | Fourth |
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Organisms at each trophic level depend on those at the lower level trophic level for their energy demands except:
| 1. | Primary consumers | 2. | Secondary consumers |
| 3. | Tertiary consumers | 4. | Decomposers |
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Each trophic level has a certain mass of living material at a particular time, best called as:
| 1. | Biomass | 2. | Standing state |
| 3. | Standing crop | 4. | Gross productivity |
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