Discussion
Some plants may inhibit the growth of other species by the chemical nature of the litter or by special secretion is known as :
Answer: B
The phenomenon is allelopathy.
Allelopathy is the inhibition of one plant by chemicals released by another, through root exudates, leachates from leaves, volatile compounds or decomposing litter. Juglone from black walnut and the compounds released by eucalyptus and Parthenium are familiar examples.
Allopatric describes populations or species living in separate geographical areas. An apomict is a plant that produces seed without fertilisation. Admixture means mixing, for example of genes or materials. None of them refers to chemical inhibition.
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