Answer:a is the answer Your welcome:)!
The absolute number of molecules of drug required to elicit a response
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Embryonic stem cells have the potential to produce regenerated tissues, such as skin. They could provide means of healing diseases such as type 1 diabetes where a particular cell has been lost or is malfunctioning.
The route sperm take through the human male reproduction by C. Vas deference, epididymis then the Urethra.
