For the following questions answer them individually
Observe the following lists and match correct combinations.
Correct answer of A,B,C,D and E is
Assertion (A): 'SRI' in SRI vari is 'System of Rice Intensification'.
Reason (R): Any rice variety can be cultivated as semi arid using less amount of seed and less water.
Identify the incorrect matches from the following.
Assertion (A): Conversion of solid nitrates $$(NO3^-)$$ into gaseous Nitrogen($$N_2$$) by bacteria is called denitrification.
Reason (R): Denitrifying bacteria grow in wet soils.
Assertion (A): Fewer the steps in the food chain, more energy will flow to the species of higher trophic level.
Reason (R): Energy loss during transformation from one tropic level to the next will be minimized.
Study the following pyramids of numbers and identify the shape of the pyramid.
A) Banyan tree $$\rightarrow$$ Insects $$\rightarrow$$ Parasites on insects
B) Grass plants $$\rightarrow$$ Rabbits $$\rightarrow$$ Wolf
Phosphodiester bonds are seen in the following biomolecules
Choose the living organisms that are being used as biocontrol agents.
I. Bacillus thuringiensis
II. Trichoderma
III. Dragon fly
IV. Tungro virus
The term 'Ecological pyramid' was introduced by
Natural mutations in plants and animals were first observed by