Give differences : Food chain and food web
Food chain | Food web |
$(1)$ It is a linear sequence of organisms. | $(1)$ It is an inter connection of many food webs. |
$(2)$ Organisms found on higher trophic level depend on any one type of organisms for food. | $(2)$ There are many alternative sources lie with an organisms for food. |
$(3)$ Energy flow can we calculated easily. | $(3)$ The calculation of energy flow is difficult. |
If forest area is reduced to half, which one of the following will be a long term effect
The rate of decomposition is faster in the ecosystem due to following factors $EXCEPT$
Transfer of material and energy from one ecosystem to other ecosystem is best examplified by
The percentage of light energy utilized for photosynthesis by higher plants is
Energy enters in ecosystem through