Mollusks

Doing this lesson, I have learned many interesting things about mollusks and shells. The most interesting thing I have learned about mollusks was knowing that mollusks have no back bone, which means it is an invertabrate animal. Also there are different types of mollusks: bilvalve and a gastropod. A bilvalve is an ocean creature that has two parts to its shell. A gastropod has only one part to the shell and looks like it crawls on its stomach. These were very interesting topics to learn about.