Which combination of items below is incorrect? decomposers – bacteria and fungi pioneer community – lichens and mosses commensalism – symbiosis in which both organisms benefit ecological niche – role played by a species in its natural habitat

Symbiosis in which each organisms benefit ecological niche.

Explanation:

Symbiotic relationship is an interaction between organisms living together in which either they both benefits, or one benefit or parasitic in which the predator cause harm on the prey. Symbiotic relationship can either be mutualistic I.e each benefits from each other, predation or parasitic I e one benefits and cause harm in another.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.