Advertisements
Advertisements
Question
Explain the following with suitable examples.
What type of changes occur in the amount of energy during its transfer from plants to apex consumers?
Solution
The ecosystem's plants store part of the solar energy as food. This energy is passed on from one trophic level to the next. At every trophic level, the organism uses some amount of energy for its own life processes and some amount of energy is lost to the surroundings. Decomposers dissipate some amount of energy in the form of heat. However, no part of the energy ever returns to the Sun. Hence, such energy passage is called ‘one way’ transport. Energy is, therefore, greatest at the base of the pyramid and least at the apex. For example, humans at the pyramid's peak have 10 kcal of energy, whereas phytoplanktons at the pyramid's base have 10,000 kcal.
APPEARS IN
RELATED QUESTIONS
Put a tick mark (✓) against the correct alternative in the following statement:
Rat in any food chain would occupy the position of
Mention if the following statement is true (T) or false (F).
Cattle go to ponds for drinking water, so they are a constituent of pond ecosystem (T/F)
Rewrite the following in their correct sequence in a food chain:
Snake → Grasshopper → Grass → Frog
Differentiate among primary, secondary, and tertiary consumers. Give one example of each in a food chain.
Define the following term and give two examples:
Symbiosis
Define the term predation.
Correct and rewrite the following statement and justify your correction.
Carnivores occupy the second trophic level in the food chain.
Give reason.
Energy flow through an ecosystem is ‘one way’.
Rewrite the following in their correct sequence in a food chain:
Grass → Tiger → Deer
Rewrite the following in their correct sequence in a food chain:
Snake → Peacock → Rat → Wheat
Define the food chain and give two examples.
Put a tick mark (✓) against the correct alternative in the following statement:
The number of steps in a food chain can never be more than
