This quiz works best with JavaScript enabled. Home > Nematology > Research > Nematodes – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Nematodes Quiz 3 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What type of symmetry do Platyhelminthes have? A) Bilateral. B) Asymmetrical. C) Round. D) Small. Show Answer Correct Answer: A) Bilateral. 2. What structure pulls food into the intestine of the round worm? A) External pharynx. B) Gastrovascular cavity. C) Internal pharynx. D) Rennett. Show Answer Correct Answer: C) Internal pharynx. 3. Which of the following is an pseudocoelomate? A) An organism such as Planaria (flatworms) that have no body cavity. B) An organism such as a jellyfish with a central digestive cavity. C) An organism such as a mammal with a body cavity lined with 2 layers of mesoderm. D) An organism such as a Nematode (roundworm) that has a "false" body cavity. Show Answer Correct Answer: D) An organism such as a Nematode (roundworm) that has a "false" body cavity. 4. What species represents the hookworm? A) Necator americanus. B) Enterobius vermicularis. C) Ascaris lumbicoides. D) Wuchereria bancrofti. Show Answer Correct Answer: A) Necator americanus. 5. What is the treatment for D. medinensis? A) Twist-stick method. B) Mebendazole. C) Antibiotics. D) Supportive care. Show Answer Correct Answer: A) Twist-stick method. 6. Roundworms of the phylum Nematoda are… A) Diploblastic and acoelomates. B) Triploblastic and acoelomates. C) Triploblastic and pseudocoelomates. D) Triploblastic and coelomates. Show Answer Correct Answer: C) Triploblastic and pseudocoelomates. 7. Shedding of the cuticle and growing a new, larger cuticle after the body rapidly enlarges. A) Growth. B) Life Cycle. C) Ecdysis. D) Cuticledysis. Show Answer Correct Answer: C) Ecdysis. 8. Why is it so important that Platyhelminthes worms have a flattened body? A) So they can fit in small spaces. B) It's easier for them to move that way. C) Their cells absorb oxygen through their skin, so they have to be close to the outside. D) It makes reproduction more simple. Show Answer Correct Answer: C) Their cells absorb oxygen through their skin, so they have to be close to the outside. 9. Which of the following is a structure associated with the nervous system? A) Nephridia. B) Ganglia. C) Flame cells. D) Crop. Show Answer Correct Answer: B) Ganglia. 10. The adults of this parasite live in subcutaneous nodules and Microfilariae initially elicit punctuate keratitis. A) T. canis. B) O. volvulus. C) Malayi. D) W. bancrofti. Show Answer Correct Answer: B) O. volvulus. 11. Nematode movement can be described as ..... due to the type of muscle they have. A) Thrashing side to side. B) Extending and shortening. C) Smooth and fluid-like. D) Depends on the species. Show Answer Correct Answer: A) Thrashing side to side. 12. Wuchereria bancrofti are simmilar to you and me in that they have a digestive system that is essentially a single long tube with a mouth opening and an anus. What type of digestive system is this? A) Extracellular. B) Intracellular. C) Incomplete. D) Complete. Show Answer Correct Answer: D) Complete. 13. This parasite is found worldwide, transmitted via bites from flies/mosquitos and diagnosed by examination of thick and thin blood smears. A) W. bancrofti. B) Medinensis. C) T. spiralis. D) O. volvulus. Show Answer Correct Answer: A) W. bancrofti. 14. A small rounded protuberance on a part or organ of the body A) Setae. B) Papillae. C) Amphids. D) Cuticle. Show Answer Correct Answer: B) Papillae. 15. What habitats are Nematodes found in? A) Only fresh water. B) Only terrestrial (land). C) Almost all habitats. D) Only marine (saltwater). Show Answer Correct Answer: C) Almost all habitats. 16. They have body segments that allow for specialization of tissues and for efficient movement. A) Platyhelminthes. B) Nematodes. C) Annelids. D) None of above. Show Answer Correct Answer: C) Annelids. 17. What is Loa loa's intermediate host? A) Tabanid fly. B) Mosquito. C) Deer tick. D) Black fly. Show Answer Correct Answer: A) Tabanid fly. 18. This body type is considered a false body cavity. A) Psuedocoelomate. B) Coelomate. C) Acoelomate. D) Triploblast. Show Answer Correct Answer: A) Psuedocoelomate. 19. Which is true of both flatworms and roundworms? A) They both have radial symmetry. B) They both have bilateral symmetry. C) They are both acoelomates. D) They are both pseudocoelomates. Show Answer Correct Answer: B) They both have bilateral symmetry. 20. A child complaining of rectal itching and insomnia is most likely suffering from A) Pinworm. B) Whipworm. C) Hookworm. D) Threadworm. Show Answer Correct Answer: A) Pinworm. ← PreviousNext →Related QuizzesNematology QuizzesNematodes Quiz 1Nematodes Quiz 2Nematodes Quiz 4Nematodes Quiz 5Nematodes Quiz 6Nematodes Quiz 7Nematodes Quiz 8Nematodes Quiz 9Nematodes Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books