Write the equation that helps in deriving the net primary productivity of an ecosystem.
GPP – R = NPP (where GPP = Gross Primary Productivity, R = Respiratory losses and NPP = Net Primary Productivity)
Name the type of biodiversity represented by the following:
(a) 50,000 different strains of rice in India.
(b) Estuaries and alpine meadows in India.
Geitonogamous flowering plants are genetically autogamous but functionally cross-pollinated. Justify.
Identify the examples of convergent evolution from the following:
(i) Flippers of penguins and dolphins
(ii) Eyes of octopus and mammals
(iii) Vertebrate brainsName the enzyme and state its property that is responsible for continuous and discontinuous replication of the two strands of a DNA molecule.
An anther with malfunctioning tapetum often fails to produce viable male gametophytes. Give any one reason.
Why is the enzyme cellulase needed for isolating genetic material from plant cells and not from the animal cells?