Hòa tan Hoàn toàn 43,8g CaCl2 .6H2O trong 300ml nước . Tính C% ? CM ?

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature

Why is retrograde motion an apparent motion