Estructura presente en células vegetales, en hongos y algunos protistas, tiene como función: otorgar rigidez y define la estructura de la célula, da soporte a sus tejidos y protege los contenidos celulares. Según lo anterior esta estructura corresponde a 1)Gran vacuola central.
2)Pared celular.
3)Cloroplastos.
4)Mitocondrias.

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.

20 the main source of energy for our planet comes from the

Explain why autonomous underwater explorers (aue) will provide entirely new kinds of information about ocean processes