Explanation:
Cuando los niveles de testosterona están bajos, la hormona liberadora de gonadotrofina (GnRH) es liberada por el hipotálamo que a su vez estimula la glándula pituitaria para liberar LH. Esta última hormona estimula los testículos para sintetizar la testosterona.
The dissolved sugars produced in the leaves of a maple tree move to the roots through the<em><u> phloem</u></em>. It is a tissue that transports nutrients to where it is needed
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What is Mutation
The major source of the genetic diversity among microorganisms upon which natural selection operates is Mutation.
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Answer:
Cardiac Muscle
Explanation:
Your heart is a cardiac muscle so, any muscle related to the heart is a cardiac muscle.