Advertisements
Advertisements
Question
State the law which governs the energy flow in an ecosystem.
Solution
The laws of thermodynamics govern the energy flow in the ecosystem.
According to the first law of thermodynamic, the energy can be transformed from one form to the other form, but it can neither be created nor destroyed.
According to the second law of thermodynamics, when energy is put to work, a part of it is always converted in un-useful form such as heat mainly due to friction and radiation.
APPEARS IN
RELATED QUESTIONS
Distinguish between Grazing food chain and detritus food chain.
Distinguish between Litter and detritus.
Define Diffusion
Explain why a progressive decline is seen in the population size from the first to the fourth trophic level in the above pyramid.
Answer the following question:
What do detritus food chains begin with?
What is the % of photosynthetically active radiation in the incident solar radiation?
If the carbon atoms fixed by producers already have passed through three species, the trophic level of the last species would be ______.
Name an omnivore which occurs in both grazing food chain and the decomposer food chain.
Study the food chain given below and answer the question that follows:
If the amount of energy available at the third trophic level is 100 joules, then how much energy will be available at the producer level? Justify your answer.
Complete the given chart:
| Trophic levels | Type of organisms | Status | Example |
| ______ | ______ | Secondary consumer | ______ |
| Second trophic level | Herbivore, Heterotrophs | _____ | ______ |
| ______ | ______ | ______ | Phytoplankton, grass, trees |
