Why use needle loop to prepare fungi slide ?

Needle loop is used to inoculate microorganisms.

Explanation:

Inoculation of microorganisms in a given culture media involves application of substances which may be chemicals or a food source to the microbes to ensure its survival. It helps in the growth of the organisms for further analysis.

The loop is usually flamed to kill foreign organisms as this may contaminate which may result in altering the reactions and observations of the study.

activation of phospholipase c (plc) indirectly increases intracellular ions through inositol triphosphate (ip3).

answer: no, they are not.*

although rubber bands that contain excessive amounts of dye, toxins, or additives are sometimes toxic, most rubber bands do not cause any health issues. since they are typically made of latex, (a natural substance that is extracted from trees) they are not dangerous in any way if you chew them or accidentally ingest a piece of rubber band. however, chewing rubber bands does pose a choking hazard and is not a good habit to have.

*depending on the type of rubber band. the typical rubber bands that you see at stores are not toxic, but other types of rubber or latex that contains certain chemicals may be unhealthy and hazardous.