The food chain starts from :
consumer
producer
decomposer
nitrogen fixation
B.
producer
Food chain initiates from producers. Transfer of food energy from producers takes place through a series of organisms, i.e herbivores to carnivores to decomposers with repeated eating and being eaten is known as food chain.
Producers utilise the radient energy of sun which is transformed to chemical energy during photosynthesis. Thus, green plants occupy first trophic level in any food chain.
Which of the following is the product of glucose fermentation by yeast?
C6H12O6
C2H5OH
(C6H10O5)n
CH2OH
The formation of embryo without fusion of gametes is termed as :
apospory
isogamy
apogamy
syngamy
Which of the following is not a pollutant?
Hydrogen
Carbon dioxide
Sulphur dioxide
Carbon monooxide