they are positive feedback and increase activity negative feedback.
equilibrium
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It depends. Are you looking for multiple feedback or are you waiting for feedback on one person? If its multiple people I would say 'feedbacks', if it's just one person I would say feedback.
They will improve through Employee and Customer Feedbacks
criticism and feedback are the two types of mechanism
there are many different types of mechanisms that can make thing cross cell membranes two of these are by diffusing and active transport.
evoloution and adaptation
peristalsis and segmentation
they are positive feedback and increase activity negative feedback.
Gaben at valve
two types I am aware of are rack and pinion and gearbox.
Neutral variation and Diploidy.