Did Sponge evolve from Blue green alage, and bacteria?

It isn't that simple, but you're on the right track.

The first animal, from which all other animals are descended, was probably much like a modern sponge. This now-extinct animal lived in a world that had a wide variety of unicellular species and colonies. Some species of algae of would likely have existed by then as well.

This animal would have evolved from colonies of single-celled organisms; such colonies still exist in some species today. This particular colony structured themselves in such a way that a survival advantage was imparted to the group as a whole, although it's difficult to determine, in retrospect, what that advantage may have been (several guesses could be made, but I can't substantiate which ones might be relevant).

1. Your sponge isn't alive. 2. If it were alive, and had other sponges to reproduce with, it would take either a favorable mutation, environmental pressure, or natural selection to force changes in the genome. Since I assume your sponge lacks natural predators or competition in its current environment, it's not going to express many changes. 3. The ShamWow guy is creepy. 4. If the ShamWow Guy and OxyClean Guy had a fight, who would win?

yes right out of the ocean and into our life's in just a few hundred years.

The first was a single cell animal called a omeba. 100 would fit on tip of a pin.