Ecological Pyramid
BIOXII14: ECOSYSTEM

344484 Assertion :
The pyramid of biomass in sea is generally inverted.
Reason :
Number of phytoplanktons is more than number of fishes.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
BIOXII14: ECOSYSTEM

344485 Identify the incorrect statement from the following.

1 Pyramid of energy is mostly upright, but sometimes it may be inverted.
2 Pyramids of number and biomass may be either upright or inverted.
3 Pyramid of biomass in sea is generally inverted as the biomass of fish far exceeds that of phytoplanktons.
4 Food chains are generally short with few trophic levels as only \(10 \%\) of the energy is transferred to each trophic level from the lower trophic level
BIOXII14: ECOSYSTEM

344486 Pyramid of biomass in pond ecosystem is

1 Inverted
2 Sometimes upright
3 Always upright
4 Both (1) and (2)
BIOXII14: ECOSYSTEM

344487 Which of the following statements regarding food chain is false?

1 Primary consumers belong to the first trophic level
2 The detritus food chain begins with dead organic matter.
3 In terrestrial ecosystems, a large dfraction of energy flows through detritus food chain.
4 In an aquatic ecosystem, grazing food chain is the major conduit for energy flow.
BIOXII14: ECOSYSTEM

344484 Assertion :
The pyramid of biomass in sea is generally inverted.
Reason :
Number of phytoplanktons is more than number of fishes.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
BIOXII14: ECOSYSTEM

344485 Identify the incorrect statement from the following.

1 Pyramid of energy is mostly upright, but sometimes it may be inverted.
2 Pyramids of number and biomass may be either upright or inverted.
3 Pyramid of biomass in sea is generally inverted as the biomass of fish far exceeds that of phytoplanktons.
4 Food chains are generally short with few trophic levels as only \(10 \%\) of the energy is transferred to each trophic level from the lower trophic level
BIOXII14: ECOSYSTEM

344486 Pyramid of biomass in pond ecosystem is

1 Inverted
2 Sometimes upright
3 Always upright
4 Both (1) and (2)
BIOXII14: ECOSYSTEM

344487 Which of the following statements regarding food chain is false?

1 Primary consumers belong to the first trophic level
2 The detritus food chain begins with dead organic matter.
3 In terrestrial ecosystems, a large dfraction of energy flows through detritus food chain.
4 In an aquatic ecosystem, grazing food chain is the major conduit for energy flow.
BIOXII14: ECOSYSTEM

344484 Assertion :
The pyramid of biomass in sea is generally inverted.
Reason :
Number of phytoplanktons is more than number of fishes.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
BIOXII14: ECOSYSTEM

344485 Identify the incorrect statement from the following.

1 Pyramid of energy is mostly upright, but sometimes it may be inverted.
2 Pyramids of number and biomass may be either upright or inverted.
3 Pyramid of biomass in sea is generally inverted as the biomass of fish far exceeds that of phytoplanktons.
4 Food chains are generally short with few trophic levels as only \(10 \%\) of the energy is transferred to each trophic level from the lower trophic level
BIOXII14: ECOSYSTEM

344486 Pyramid of biomass in pond ecosystem is

1 Inverted
2 Sometimes upright
3 Always upright
4 Both (1) and (2)
BIOXII14: ECOSYSTEM

344487 Which of the following statements regarding food chain is false?

1 Primary consumers belong to the first trophic level
2 The detritus food chain begins with dead organic matter.
3 In terrestrial ecosystems, a large dfraction of energy flows through detritus food chain.
4 In an aquatic ecosystem, grazing food chain is the major conduit for energy flow.
BIOXII14: ECOSYSTEM

344484 Assertion :
The pyramid of biomass in sea is generally inverted.
Reason :
Number of phytoplanktons is more than number of fishes.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
BIOXII14: ECOSYSTEM

344485 Identify the incorrect statement from the following.

1 Pyramid of energy is mostly upright, but sometimes it may be inverted.
2 Pyramids of number and biomass may be either upright or inverted.
3 Pyramid of biomass in sea is generally inverted as the biomass of fish far exceeds that of phytoplanktons.
4 Food chains are generally short with few trophic levels as only \(10 \%\) of the energy is transferred to each trophic level from the lower trophic level
BIOXII14: ECOSYSTEM

344486 Pyramid of biomass in pond ecosystem is

1 Inverted
2 Sometimes upright
3 Always upright
4 Both (1) and (2)
BIOXII14: ECOSYSTEM

344487 Which of the following statements regarding food chain is false?

1 Primary consumers belong to the first trophic level
2 The detritus food chain begins with dead organic matter.
3 In terrestrial ecosystems, a large dfraction of energy flows through detritus food chain.
4 In an aquatic ecosystem, grazing food chain is the major conduit for energy flow.