Mr. $X$ is eating curd/yoghurt. For this food intake in a food chain,he should be considered as occupying:

How many of the following are primary producers in a terrestrial ecosystem?
Herbaceous plants,Algae,Woody plants,Phytoplankton,Aquatic plants

Which of the following statements are correct regarding a food chain?
$(a)$ If $80\%$ of tigers are removed from an area,the growth of vegetation in that area increases.
$(b)$ If carnivores are removed from an area,the population growth of deer increases.
$(c)$ The length of a food chain is limited to $3$ to $4$ trophic levels because the amount of energy decreases in the ecosystem.
$(d)$ The length of a food chain is usually $2$ to $8$ trophic levels.

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.

When a peacock eats a snake,which eats insects,and insects feed on green plants,the peacock is a/an:

Herbivores are called