Pyramid of Number

Q. Pyramid of numbers in grassland ecosystem is _______.

1. upright

2. inverted

3. linear

4. spindle-shaped

Q.

Pyramid of numbers in an aquatic ecosystem is always upright.

1. a
2. b

Q.

Generally in the food chain of the terrestrial and aquatic ecosystem the largest population is that of:

1. Producers

2. Tertiary consumers

3. Secondary consumers

4. Primary consumers

Q.

The graphical representation of the number of organisms at all the levels of a food chain is ______________

Q.

Which of the following is a type represents the pyramid of number?

1. Upright pyramid

2. Partly upright pyramid

3. Inverted pyramid

4. All of the above

Q. An ecological pyramid of numbers shows the

1. Number of organisms at each stage in the food chain
2. Number of organisms in different food chains
3. Number of food chains in a food web
4. Total number of organisms in a food web

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

Q. Which of the following is a type of ecological pyramid?

1. Pyramid of number
2. Pyramid of body mass
3. Pyramid of richness
4. Pyramid of diversity

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

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

Q. Statement 1: In a food chain, number of organisms at each successive level decreases.
Statement 2: Number of organisms at any trophic level depends upon the availability of food and energy.

1. Both the assertion and the reason are true and the reason is the correct explanation for the assertion
2. Both the assertion and the reason are true but the reason is not the correct explanation of the assertion
3. The assertion is true but the reason is false
4. Both the assertion and the reason are false

Q.

A graphical representation of number of individuals of different species belonging to a particular trophic level in an ecosystem is

1. ecological pyramid

2. pyramid of biomass

3. pyramid of number

4. pyramid of energy

Q.

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

Q. Given below is an imaginary pyramid of numbers. What could be one of the possibilities about certain organisms at some of the different levels?

1. Level one PP is "pipal trees" and the level SC is "sheep"
2. Level PC is "rats" and level SC is "cats"
3. Level PC is "insects" and level SC is "small insectivorous birds"
4. Level PP is " Phytoplanktons" in sea and "Whale" on top-level TC

Q.

Generally, in the food chains of terrestrial and aquatic ecosystems, the largest population is that of:

1. Primary consumers
2. Secondary consumers
3. Producers
4. Tertiary consumers

Q. The upright pyramid of number is absent in

1. Forest
2. Lake
3. Grassland
4. Pond

Q.

Which of the following does the pyramid of numbers indicate?

1. Number of individuals at every trophic level

2. Species belonging to a particular region

3. Number of animals in a biotic community

4. Number of organisms in an abiotic community