- What is a free swimming umbrella shaped organism with its mouth facing downward?
- Under each day is a set of objects, used to hold and grip, called what?
- What is the largest group of water animals on Earth?
- Bugs with a protective shell around the wings is classified as what?
- What is another name for the class Hemiptera?
- Bugs with wings made of a thin membrane are classified as what?
- Bugs with two wings and piercing parts are classified as what?
- What are bugs with a half wing design classified as?
- Bugs that gather food and protect a colony are known as what?
- What are the inner layer of cells that line the body of the sponge?
- What is the only cephalopod with an external shell?
- Mollusks with two protective shells are known as what?
- What is the open chamber in which the gills are located?
- What are the only animals with a water vascular system?
- Bugs with scaled wings are classified as what?
- What organ is used for locomotion in mollusks?
- What is the only multicellular organism that does not contain at least a rudimentary nervous system?
- Mollusks with one shell is known as what?
- Toothed insects are classified as what?
- What are straight winged insects classified as.