(a) Define ecosystem.
(b) Autotrophs are at the first level of food chain. Give reason.
(c) In a food chain of frogs, grass, insects and snakes, assign trophic level to frogs.
An ecosystem is made up of plants,animals and microorganisms living in an area together with non living components like climate,soil,rivers etc
A typical Ecosystem looks like
The first level of the food chain is always autotrophs since they do not consume other organisms instead they produce their own food through photosynthesis.
The food chain will be as follows:
- Grass is the primary producer.
- Insects are primary consumers.
- Frogs are secondary consumers.