Answer:
Nonliving characteristics include the fact that they are not cells, have no cytoplasm or cellular organelles, and carry out no metabolism on their own and therefore must replicate using the host cell's metabolic machinery. Viruses can infect animals, plants, and even other microorganisms.
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Ecology is a very general answer, and so I present it to you. Ecology is a division of biology that mainly focuses on environments, animal adaptations, and land forms. Hope my answer was useful. <span />
Yeasts reproduce asexually by a process called budding