The training principle that states that exercising a certain body part or practicing a particular skill primarily develop that part or skill is:
specificity
Explanation:
The best coaching programmes are designed on principles of specificity, overload, progression, and changeableness. You'll additionally use the FITT descriptor to assist bear in mind the key things to contemplate once craft programmes for individual sporting goals. It stands for; Frequency, Intensity, Time and kind.
I believe it was b 1999 when they had the appropriate technology
Answer:
The stratum corneum is the outermost layer of the epidermis and marks the final stage of keratinocyte maturation and development. Keratinocytes at the basal layer of the epidermis are proliferative, and as the cells mature up the epidermis, they slowly lose proliferative potential and undergo programmed destruction.
To give evidence supporting the writer's belief.