$A$ food chain consists of:

In a food chain of a grassland ecosystem,the top consumers are

Identify the correct sequence of development of a stable community (climax community) starting from a new area (primary succession).

How many statements are correct?
$(a)$ Some animals like cockroaches,crows,etc.,are omnivores.
$(b)$ Detritus food chain $(DFC)$ begins with dead organic matter.
$(c)$ Each trophic level has a certain mass of living material at a particular time called as standing crop.
$(d)$ Species composition and stratification are two main structural features of an ecosystem.

Ecological succession represents .........

What type of food chain is the following?
Grass $\rightarrow$ Goat $\rightarrow$ Human