Phylum Rotifera and Phylum Nematoda
Across
3. This sensory organ is unique to nematodes.
5. The protonephridia of rotifers function in osmoregulation, meaning they
control the levels of this molecule.
8. Enterobius is known as this type of roundworm, and is most often found in
young babies and toddlers.
12. Nematodes and rotifers belong to this group of animals, which means
"bladder worms."
13. Because many species of rotifers utilize parthenogenesis, there are very
few of this gender.
16. When this happens, mictic eggs become dormant winter eggs that hatch into
females during the melting of the snow.
17. Trichinella, the porkworm, can cause this disease.
20. These are the glands found on the "foot" region of rotifers and are used
for adhesion to surfaces.
21. In female rotifers and nematodes, eggs are produced in this sexual organ.
23. Nematodes move in a whiplike motion because their body wall has only
these types of muscles.
24. Rotifers and nematodes are this because they have a modified body cavity
with mesoderm lining only one side.
Down
1. Some species of rotifers utilize this modified form of sexual
reproduction.
2. In rotifers, these eggs are produced by meiosis and develop into males if
not fertilized.
4. In nematodes and rotifers, this outer layer is used for protection and
maintaining hydrostatic pressure.
6. Filiarial worms cause damage to this system, where they block blood
vessels, which can lead to elephantiasis.
7. Nematodes consist of these species, which feed on the blood and tissue
fluids of their hosts.
9. The cuticle of rotifers thickens to form this outer structure.
10. This roundworm species is known as the giant intestinal roundworm.
11. This is the ciliated organ found on the anterior end of a rotifer.
13. Distinct structure found in rotifers, used for grinding food.
14. Nematodes are this, which means male and female reproductive structures
are found in different forms.
15. Cilia found on the corona of rotifers are used to create a water current
and bring food to this structure.
18. Rotifers and nematodes have both a mouth and an anus, meaning they have
this type of digestive tract.
19. In rotifers, the exchange of gases and nitrogenous ways occurs across the
body surface through this simple process.
22. In rotifers, these eggs are produced by mitosis and develop into amictic
females.