An isolated colony on a selective medium is not considered a pure culture because inhibited organisms might be masked by the colonies. This statement is true.
On the basis of their constitution or usage, culture media can be classified into various groups; these include defined, complex, selective, as well as enrichment medium.
A selective medium consists of dyes or noxious substances/chemicals which inhibit the growth of specific microorganisms but promote the growth of other microbes.
A pure culture is a laboratory culture which contains a single species of microorganism. It is free from other microorganisms.
Since selective media affects the growth of distinct organisms differently, therefore, an isolated colony formed in such type of medium is not considered a pure culture.
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Answer: Abiotic
Explanation: Prairie soil is Non-living, therefore making it Abiotic!
Biotic also means living btw.
Answer:
They orbit around the nucleus of an atom.
Explanation:
Protons are located inside of the nucleus. Electrons orbit the nucleus.
Answer: <em>They are both necessary for organisms to survive.</em>
Explanation:
<em>Abiotic factors refer to non-living physical and chemical elements in the ecosystem. Abiotic resources are usually obtained from the lithosphere, atmosphere, and hydrosphere. Examples of abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem.</em>
No, that is because a living thing would need to reproduce, and also include living cells. When you remove the pedals, it will rot after a bit and then eventually die completely.
