Answer:
oxygen
Explanation:
we need oxygen don't mind me
The DNA is found in the nucleus of the cell
Answer: Disinfectant is a chemical formulation which may include biological components used to reduce the population of a microbe from a living or dead surface.
Explanation:
The plant tissue is treated with a disinfectant before culturing it and growing new plants. This is done to remove dirt, dust, foreign particles like pollen, microbes from the plant tissue surface or from plant part. This help in growth of disease free and contamination free plants. The culture can be utilized for different cycles of plant growth as it remains free from any kind of contamination.
Theory of adaptation is valid because scientist can see facts that supported the theory. Adaptation makes organism survive especially in this rapid changing world. For instance, parts of human anatomy like appendix and tail bone were still present in humans but are no longer functional.
