Pyramid of Number

Q.

How is energy lost in a food chain?

Q.

Describe the flow of energy in an ecosystem.

Q. What do all ecological pyramids depict?

1. Increase in energy at each trophic level
2. Number of organisms at each trophic level
3. Reduction in energy transferred at each trophic level
4. Biomass of organisms at each trophic level

Q. The pyramid of ____ shows a decrease in both numbers and ____.

1. energy, biomass
2. number, biomass
3. number, energy
4. biomass, energy

Q. The pyramid of energy is always upright for any ecosystem. This situation indicates that ____________.

1. producers have the lowest energy conversion efficiency
2. carnivores have a better energy conversion than herbivores
3. energy conversion is the same in all trophic levels
4. energy flow will be blocked

Q. The pyramid of number of individuals per unit area in grassland ecosystem will be

1. Erect
2. Inverted
3. Both A and B
4. None of the above

Q. Which of the following does the pyramid of numbers indicate?

1. Number of individuals at every trophic level
2. Number of animals in a biotic community
3. Species belonging to a particular region
4. Species belonging to an abiotic community

Q. The pyramid of numbers shows decrease in both numbers and ___

Q.

Pyramid of numbers deals with the number of:

1. Species in an area
2. Sub-species in a community
3. Individuals in a community
4. Individuals in a trophic level

Q. The pyramid of numbers shows a decrease in both numbers and ___.

Q. The pyramid of numbers for a single tree is .

1. upright
2. inverted
3. spindle-shaped
4. square-shaped