Ecosystem · Question 3

Which of the following are primary consumers in a food chain?

1. Carnivores
2. Parasites
3. Predators
4. Herbivores

Which of the following statements are correct?

1. B and C only
2. A, B and C
3. A and B only
4. A and C only

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is correct but statement II is incorrect
2. Statement I is incorrect but statement II is correct
3. Both statement I and statement II are correct
4. Both statement I and statement II are incorrect

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is correct but statement II is incorrect
2. Statement I is incorrect but statement II is correct
3. Both statement I and statement II are correct
4. Both statement I and statement II are incorrect

Which of the following is the unit of productivity of an Ecosystem?

1. kcal m-3
2. (kcal m-2) yr-1
3. g m-2
4. kcal m-2

In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x ( kcal m-2 ) yr-1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?

1. x10 ( kcal m-2 ) yr-1
2. x ( kcal m-2 ) yr-1
3. 10x ( kcal m-2 ) yr-1
4. 100x3x ( kcal m-2 ) yr-1

Consider the pyramid of energy of an ecosystem given below: [figure] If T4 is equivalent to 1000 J, what is the value at T1 ?

1. 1000010 J
2. 1000010 4 J
3. 10,000 J
4. 10,00,000 J

Which one of the following is not a limitation of ecological pyramids?

1. Saprophytes are not given any place in ecological pyramids
2. It assumes a simple food chain, that almost never exists in nature
3. It accommodates a food web
4. It does not take into account the same species belonging to two or more trophic levels

Identify the correct statements : Choose the correct answer from the options given below :

1. B, C, D only
2. C, D, E only
3. D, E, A only
4. A, B, C only

In the equation GPP - R = NPP GPP is Gross Primary Productivity NPP is Net Primary Productivity R here is .

1. Respiratory quotient
2. Respiratory loss
3. Reproductive allocation
4. Photosynthetically active radiation