Question

Select the correct matches :

(a) Sedimentary nutrient cycle - Nitrogen cycle (b) Pioneer species - Lichens (c) Secondary succession - Burnt forest (d) Pyramid of biomass in sea - upright

• A. a, b, and d only
• B. b, and c only
• C. a, and c only
• D. b, and d only

Answer 1

The correct option is B b, and c only

a) The sedimentary cycle is different from the nitrogen cycle. Sedimentary nutrient cycle deals with elements like iron, calcium, phosphorus, sulfur, and other more-earthbound elements.

b) Pioneer species are the first species to enter an area after a disturbance. They are the colonizers. The species like bacteria, fungi, and lichens constitutes the first stage of ecological succession.

c) Secondary succession takes place in a place that has been destroyed due to fire, floods, and other natural calamities. It includes burnt forests, logging of forests, etc.

d) The pyramid of biomass in the sea is not upright. It is inverted because the biomass of fishes far exceeds the phytoplankton population.

So, option b and c are correct