Which of the following food chain shows spindle shaped pyramid of number?
Grass $\rightarrow$ Insects $\rightarrow$ Frog
Phytoplankton $\rightarrow$ Zooplankton $\rightarrow$ Small fish
Tree $\rightarrow$ Birds $\rightarrow$ Hawks
Tree $\rightarrow$ Birds $\rightarrow$ Insects $\rightarrow$ Bacteria
A food chain starts with
The second order consumer in a food chain is
Match the following columns.
Column $- I$ | Column $- II$ |
$(a)$ Phytoplankton, grass | $(p)$ First trophic level |
$(b)$ Man, Lion | $(q)$ Herbivore |
$(c)$ Zooplankton, Cow, Grasshopper | $(r)$ Third trophic level |
$(d)$ Birds, Wolf | $(s)$ Top carnivore |
Identify the likely organisms $(1), (2), (3)$ and $(4)$ in the food web shown below.
If $10,000 \;J$ of energy fall on piece of land, then what is energy available at $T_2$ level?