Look at the last table of your data sheet. which of the organelles below were observable under low power? check all the organelles that you could see.

a) cell membrane
b) nucleus
c) vacuoles
d) ribosomes

answer is a

Chalk is an ionic compound. which is a property of all ionic compounds that makes chalkboard? particularly useful for writing on a a high melting point hardness and brittleness inability to dissolve in water a multicolored appearance

Using the periodic table, determine which material is most likely a good conductor

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time