Prepare indicators by using natural materials like extract of red cabbage leaves, crushed beetroot, coloured petals of flowers such as petunia, onion extract, clove oil and vanilla essence and use these indicators to find the nature of various substance. Tabulate your observations... Pls Help

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

What is the mass of each element in a 324.8 sample of co2

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