Which statement best explains why a third domain, Archaea, was added to the original two domains of Bacteria and Eukarya? Question 19 options:

Scientists discovered that eukaryotes have cell walls.

Scientists discovered that eukaryotes are unicellular.

Scientists discovered that some prokaryotes live in extreme environments.

Scientists discovered that some prokaryotes have cell walls.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.