NEET Zoology Classification Basis MCQ Question
Which combination of characteristics accurately describes organisms in the phylum Ctenophora and Cyclostomata?
Ctenophores are radially symmetrical and have external fertilization; Cyclostomata are ectoparasitic with a closed circulatory system.
Ctenophores possess jointed appendages and have internal fertilization; Cyclostomata are bilaterally symmetrical and have an open circulatory system.
Ctenophores are bilaterally symmetrical and have a tissue level of organization; Cyclostomata are primarily found in freshwater environments.
Ctenophores display bioluminescence and have a body covered by a chitinous exoskeleton; Cyclostomata have an elongated body and a sucking mouth.
Correct Answer
Detailed Explanation
Ctenophores are radially symmetrical and reproduce externally, while Cyclostomata are ectoparasitic, have a closed circulatory system, and possess gill slits for respiration.
Found an issue with this question?
Related Questions
More from Classification Basis
More from
Which of the following combinations correctly describe characteristics of the phylum Arthropoda?
If an echinoderm's larval stage has bilateral symmetry and it develops into a radially symmetrical adult, how many distinct symmetry patterns are exhi...
What type of body covering do arthropods possess?