Which of these is not an organism?
human
virus
bacteria
tree

Virus is not an organism is the correct answer.

Explanation:

An organism is a living thing. Plants and animals are also organisms. They are biotic and living part of the environment, rocks and water cannot be considered as a living organism because they are nonliving beings. Organisms need five basic needs air, water, nutrients and energy to stay alive. There is still no consensus about whether we should consider a virus as living or not living being. They contain nucleic acid, protein and also evolve but they exist in two different phases, one is the dormant phase and the other is a live phase. When the virus is inside a living organism it behaves like an organism.

bacteria – a word that often brings out a sense of uneasiness in most of us are, in fact, one of the earliest forms of life. it can be quite unnerving to know that there are bacteria all over your skin, hair, and even inside the body. but only a few species of bacteria are dangerous. the majority of bacteria are good, and without them, life on earth wouldn’t be possible. let’s learn more about how are bacteria essential for you to survive.

they were mainly interested in writing poems. give brainliest if right.

gill russ