Well, the current theory says that another planet hit the Earth early in the time when Earth was formed and the debris from this hit later formed the moon: so the best answer from the options is " c. from a portion of Earth" but even better option would be "from another planet that hit the Earth"
Fotosíntesis
Respiración
Quimosíntesis
estos son los tres procesos por el cual los organismo pueden obtener energia del sol
Hypothalamus. Hypothalamus, besides controlling hunger, also, controls thirst, body temperature, sleep, emotional, physical, instinctive and reproductive behavior. Through pituitary is associated whit endocrine system, which is one of most important functions of hypothalamus.
Answer:
The reproductive system is controlled by the gonadotropins follicle-stimulating hormone (FSH) and luteinizing hormone (LH), which are produced by the pituitary gland. Gonadotropin release is controlled by the hypothalamic hormone gonadotropin-releasing hormone (GnRH).
Explanation:
(Endocrine)
