Phylum: Platyhelminthes(planarian= flatworms): flukes, tapeworms, free living pl

Question

Phylum: Platyhelminthes(planarian= flatworms): flukes, tapeworms, free living planarian.

28. Body symmetry is radial/bilateral? How many germ layers?

29. What are the germ layers?

30. Body cavity: acoelomate/psuedocoelomate/coelomate?

31. Digestive tract is incomplete/complete

32. They have/ do not have organs.

33. Do they have head? ___eye spot? ____brain? _____muscle?_____

34. They reproduce asexualy by constricting their_______

35. Sexual reproduction is by _________They are_________(have both male and female organs)

36. Flukes are endoparasitics/ectoparasitics? The hosts are:

37. Tapeworms are endoparasitics/ectoparasitics? Hosts are:

38. Tapeworms have repeating segments known as__________ that become egg bags.

Explanation / Answer

28. Bilateral; three germ layers. 29. Ectoderm, endoderm, mesoderm. 30. Acoelomate. 31. Incomplete. 32. Have organs. 33. Have head, have eye spots (called ocelli), have brain (consists of two cerebral ganglia), have recognizable muscle layers. 34. segments. 35. ; hermaphroditic. 36. Endoparasitic; ruminants (cattle, sheep, and other grazing animals). 37. Endoparasitic; all vertebrates can be parasitized by at least one species of tapeworm. 38. proglottids

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.