Mark the correct match
Secondary consumer -Zooplankton
Primary coloniser -Viruses
Nanoecosystem -Valley and forest
Omnivores -Cockroaches, Crows
In a food web, each successive trophic level has
Nepenthes is a
The primary consumers in a pond ecosystem are
Consider the following statements concerning food chains.
$I$. Removal of $80\; \%$ tigers from an area resulted in greatly increased growth of vegetation.
$II.$ Removal of most of the carnivores resulted in an increased population of deers.
$III.$ The length of food chains is generally limited to $3$ to $4$ trophic levels due to energy loss.
$IV.$ The length of food chains may vary from $2$ to $8$ trophic levels.
Which two of the above statements are correct?
Which is the correct sequence in the food chain in a grassland