Phylum Nematoda Quiz
12 Questions
| Total Attempts: 1197
In this quiz about roundworms, learn all about these diverse animal phyla – known scientifically as the nematodes - which inhabit a broad range of environments and boast over 25,000 different species. What can you tell us so far?
Questions and Answers
- 1.All nematodes contain a(n) :
- A.
Incomplete digestive tract
- B.
Biradial symmetry
- C.
Cuticle
- 2.One function of a cuticle is to maintain internal __________ pressure.
- 3.Another function of a cuticle is to provide ___________ _________.
- 4.And another function of the cuticle is to keep the host from________ the roundworm.
- 5.Nematodes move by _________, using a ___________ muscle. They flail.
- 6.A pseudocoelum is a fluid filled cavity containing ________ organs and forming a ________ skeleton.
- 7.Most nematodes are
- A.
Mononecious
- B.
Dioecious
- C.
Asexual
- 8.Males are smaller than females and may have an accessory copulatory structure.
- A.
True
- B.
False
- 9.Fertilized eggs hatch into larvae, and then undergo __ molts to become an adult.
- 10.Ecolysis is how a nematode's ________ is shed.
- 11.The classes are based on the presence or absence of ___________.
- 12.Phasmids are _______ organs located near the anus that function in ________ reception.
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