The purpose of a vortex instrument is to mix "small vials of liquids" in a laboratory.
Explanation:
A vortex instrument or a mixer is an laboratory instrument which is used to mix liquids in small vials.
The term vortex means swirling of a mass of air and this instrument also mixes liquid through swirling movement inside a tube.
A vortex unit is run by an electric motor which moves a rubber cup attached to the drive shaft.
The rubber cup swirls or oscillates in a circular motion and when a test tube with the liquid is pressed in the cup, the liquid contents get mixed through the transmission of the circular motion from the cup to the liquid. The speed of the rotation can be controlled.
Living creatures and the soil exchange phosphorus. Phosphates are taken up by plants from the soil and assimilated into organic molecules. Plants are consumed by animals, which then moves phosphorous up the food chain from one animal to the next. When an animal perishes and decomposes, phosphorus is released back into the soil.
negative- Thermoregulation (if body temperature changes, mechanisms are induced to restore normal levels) Blood sugar regulation (insulin lowers blood glucose when levels are high ; glucagon raises blood glucose when levels are low)
positive- contractions in child birth and the ripening of fruit; negative feedback examples include the regulation of blood glucose levels and osmoregulation.
(i got this from google btw)
hope this helped :) pls give brainiest
That would be called Classification