It is C beacuse you would produce large quantities of the neurotransmitter to see if it could be used as a potential medication.
The tissue you are referring to here is the xylem, a <u>vascular tissue</u>, whose basic function is to transport water and nutrients from the roots to the rest of the plant.
The following of what? It sounds like there is more than one answer.
Because for female sex link desease would require X°X° but for male X°Y so during crossing X linked dear are more common in male.
