Review Questions
1. Which phylum is comprised of sea anemones, corals, jellyfish, and hydras?___________
2. Which phylum contains organisms that mostly have an open circulatory system?__________
3. Describe how the circulatory system works in organisms belonging to the phylum Porifera.
4. Why do flatworms (platyhelminthes) have flattened bodies?
5. True or false? Cnidarians have a Gastro vascular cavity.
6. Explain why organisms in the phylum Porifera do not have any body symmetry.
7. Why are nematoda some of the most abundant animals on the planet?
8. True or False? Annelida animals are categorized as invertebrate?
9. Which phylum has the most species named within it?
10. How many independent fluid systems are found in the Echinodermata circulatory system?
2. Which phylum contains organisms that mostly have an open circulatory system?__________
3. Describe how the circulatory system works in organisms belonging to the phylum Porifera.
4. Why do flatworms (platyhelminthes) have flattened bodies?
5. True or false? Cnidarians have a Gastro vascular cavity.
6. Explain why organisms in the phylum Porifera do not have any body symmetry.
7. Why are nematoda some of the most abundant animals on the planet?
8. True or False? Annelida animals are categorized as invertebrate?
9. Which phylum has the most species named within it?
10. How many independent fluid systems are found in the Echinodermata circulatory system?