What Is Pyramid of Number

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 statements are true and statement 2 is the correct explanation for statement 1.
2. Statement 1 is not true but statement 2 is true.
3. Statement 1 is true but statement 2 is false
4. Both the statements are false

Q. Given below is an imaginary pyramid of numbers of a self sutainable ecosystem. Which of the following options is true about the pyramid?

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

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 statements are false
2. Statement 1 is true but statement 2 is false
3. Both the statements are true and statement 2 is the correct explanation for statement 1
4. Statement 1 is not true but statement 2 is true

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. Statement 1 is not true but statement 2 is true
2. Both the statements are true and statement 2 is the correct explanation for statement 1
3. Both the statements are false
4. Statement 1 is true but statement 2 is false