What is the difference between a polar molecule and a non-polar molecule?

Does the temperature affect the solubility of sugar and salt in water? if it does tell me like different temperatures with different solubilities so i can sketch down a graph

Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?

Which organism develops breathing organism develops breathing organs from pharyngeal arches? shark, spider, sea star, sea horse