Food chain in nature (a) in forest , (b) in grassland & (c) in a
pond
15.2 (a) Types of food Chain :
There are three types of food chains which are found in nature.
(i) Predator food chain (ii) Parasitic food chain (iii)
Saprophytic food chain
- Predator food chain extends from producers through
herbivores to carnivores, parasitic food chain stat from producers
but ends with parasites and saprophytic food chain starts with
decomposers. Producers are autotrophic organisms which synthesize
organic food from simple inorganic raw material through
photosynthesis by utilizing solar energy. A part of food synthesized
by the producers is used in their body building, while the rest is
utilized in providing energy for various life activities. - Some common predator food chains are given below :
- Vegetation Grasshopper Shrew Hawk
- Vegetation Rabbit Wolf Tiger
- Vegetation Frog Snake Peacock