Multiple Choice
All of the following statements regarding nematode phylogeny are true except one.
A) All nematodes that are plant or animal parasites belong to a single clade.
B) The old classification based on two classes is incorrect.Molecular analysis suggests that there are three nematode clades.
C) Ancestral nematodes were probably marine organisms.
D) Freshwater nematodes are found in all three clades.Marine nematodes are found in two of the three clades.
Correct Answer:
Verified
Correct Answer:
Verified
Q8: Kinorhynchs are found exclusively in _ environments.<br>A)terrestrial<br>B)freshwater<br>C)marine<br>D)stagnant
Q9: The most recent ecdysozoan phylum to be
Q10: An important function of the cuticle of
Q11: The _ are some of the most
Q12: Nematodes are typically<br>A)dioecious and dimorphic.<br>B)monoecious and dimorphic.<br>C)dioecious
Q14: Structures that function in chemoreception and are
Q15: Much of the success of nematodes is
Q16: The spiny head of a loriciferan is
Q17: Ecdysozoan animals<br>A)are all pseudocoelomates.<br>B)are all acoelomates.<br>C)are all
Q18: In the osmoregulatory/excretory system of aquatic nematodes,ventral