The function of leghaemoglobin during biological nitrogen fixation in root nodules of legumes is to
convert atmospheric $N_2$ to $NH_3$
convert ammonia to nitrite
transport oxygen for activity of nitrogenase
protect nitrogenase from oxygen
Which of the following is present in maximum amount in atmosphere
Select the incorrect match.
$I.$ Sedimentary nutrient cycle-Nitrogen cycle
$II.$ Pioneer species-Lichens
$III.$ Secondary succession-Burned forests
$I V$. Pyramid of biomass in sea-Upright
Acacia arabica is a
“The energy flow in the ecosystem follows the second law of thermodynamics.” Explain.
Ecological succession on sand is