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Sponges, Cnidarian, Ctenophora, Worms Review
1. Cnidarians have how many body openings?
2. What is the function of epidermal tissue/ cells?
3. What type of symmetry do sponges, cnidarians, ctenophores, and worms each possess? (they may be different)
4. What Kingdom, Phylum, and Class do Portuguese Man-of-Wars belong to?
5. Define dioecious and monecious
6. Simple animals with no true organs must rely on which process in order to respirate (get oxygen to their cells)?
7. What characteristic sets cnidarians and ctenophores apart? Which features do each possess?
8. Define coelom. Which type of worms have a true coelom?
9. Organisms in which phylum produce colloblast cells?
10. What is the difference between a cnidocyte (cnidoblast) and a nematocyst?
11. What are the two names given to the body cavity of Cnidarians?
12. Hermaphroditic organisms can also be called monecious/ dioceious (Circle one)
13. How do sponges reproduce sexually?
14. Describe the different types of asexual reproduction in sponges. Which of those is also found in cnidarians?
15. Name and describe the most complex group of sponges.
16. Name and describe the simplest group of sponges.
17. Name and draw what each type of symmetry looks like.
18. What is the function of nematocysts?
19. Which Phylum of worms is characterized as having a body separated into segments and having rings?
20. A primitive “brain” that can be found in many types of worms is called a
21. How do most worms perform respiration
22. Which phylum of worms is characterized as having longitudnal muscles, round body separate mouth/ anus, and
mostly dioecious?
23. Sponges belong to the phylum _______________
24. Jellyfish belong to the class ________________
25. Define sessile. Define Motile. Give 3 examples of each (classes or phyla that we have discussed in class)
27. Identify the three different classes of cnidarians. Give examples of each.
28. Place the different animal phyla in the correct evolutionary order: Nematoda, Porifera, Cnidaria, Ctenophora,
Platyhelminthes, Annelida
29. Write what the common name for each of the above phyla is.
30. Draw and label a sponge with the following: Spicule, Porocyte, Choanocyte, Ameobocyte, Osculum, Pinacocyte,
Holdfast
31. Draw and label a sea anemone and jellyfish with the following: Coelenteron, Medusa, Mouth, Polyp, Tentacles,
Anus, Ectoderm, Pedal disc, Cnidocyte, Sessile, Motile