Pyramid of Energy

Q. In the following food chain, plants provide 500 J of energy to rats. How much energy will be available to hawks from snakes?
Plants $\to$ Rats $\to$ Snakes $\to$ Hawks

Q. What will be the amount of energy available to the organisms of the $2^{\text{nd}}$ trophic level of a food chain, if the energy available at the first trophic level is 10, 000 joules?

Q.

If a grasshopper is eaten by a frog, then the energy transfer will be from

1. Producer to decomposer

2. Producer to primary consumer

3. Primary consumer to secondary consumer

4. Secondary consumer to primary consumer

Q. Energy efficiency is the least at the top of an energy pyramid.

1. False

2. True

Q.

Question 26

Like many animals although a car also moves it is not considered as a living organism. Give two or three reasons.

Q. Flow of energy in an ecosystem is always ______.

1. unidirectional
2. multidirectional
3. bidirectional
4. parallel

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

1. Pyramid of energy is inverted in aquatic ecosystem​
2. Pyramid of biomass is inverted in aquatic ecosystem​

3. Pyramid of numbers is upright in grassland ecosystem​

Q. Sort the following organisms in decreasing order of energy that they can consume.

1. Lion
2. Fox
3. Banyan
4. Rabbit

Q. Of the total amount of energy that passes from one trophic level to another in a food chain, about $10\%$ is ___.

1. reradiated as heat
2. burnt in respiration
3. stored in the body tissue
4. transpired