Pyramid of Energy in Aquatic Ecosystems

Q.

Which of the following statements is not correct on pyramids of numbers, biomass, and energy?

1. The pyramid of biomass in the sea is generally inverted.

2. The pyramid of energy is always upright

3. The pyramid of biomass in the sea is generally upright.

4. The pyramid of numbers in a grassland ecosystem is upright.

Q.

This is an inverted pyramid:

1. Pyramid of energy in a pond ecosystem

2. Pyramid of numbers in a grassland

3. Pyramid of biomass in a grassland

4. Pyramid of biomass in a pond ecosystem

Q.

The pyramid of energy in an aquatic ecosystem is

1. Always upright

2. Always inverted

3. Bell-shaped

4. None of the these

Q. Which of the following statement is incorrect regarding ecological pyramids?

1. The pyramid of energy is inverted in ocean ecosystem.
2. The pyramid of biomass is inverted in aquatic ecosystem.
3. The pyramid of numbers is upright in a grassland ecosystem.
4. The pyramid of biomass is upright in a grassland ecosystem.

Q. Following are limitations of ecological pyramids, except

1. Saprophytes are not included
2. Only a simple food chain is considered
3. Animals occupying multiple trophic levels are not discussed
4. Only food web is accommodated, giving less importance to the simple food chain

Q. Pyramid of energy in an aquatic ecosystem is always

1. Inverted
2. Upright
3. irregular
4. Linear

Q. Regarding assertion and reason, choose the correct statement
Assertion [A]: Marine ecosystems have lesser trophic levels than terrestrial ecosystems.
Reason [R]: Most of the phytoplankton is available for consumption and assimilation by primary consumers in aquatic ecosystems.

1. Both A and R are true and R explains A
2. Both A and R are true R does not explain A
3. A is true and R is false
4. A is false and R is true
5. Both A and R are false

Q. Which of the following statement is incorrect regarding ecological pyramids?

1. The pyramid of energy is inverted in ocean ecosystem.
2. The pyramid of biomass is inverted in aquatic ecosystem.
3. The pyramid of numbers is upright in a grassland ecosystem.
4. The pyramid of biomass is upright in a grassland ecosystem.

Q. Pyramid of energy in an aquatic ecosystem is always

1. Upright
2. Inverted
3. irregular
4. Linear

Q. The pyramid of biomass is inverted in

1. Pond ecosystem
2. All of the above
3. Grassland ecosystem
4. Forest ecosystem

Q. Primary productivity varies from ecosystem to ecosystem. Explain?

Q. Pyramid of energy in an aquatic ecosystem is always

1. Inverted
2. Upright
3. irregular
4. Linear