Prepare for NEET Biology Animal Kingdom (Ctenophora) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert help to study comb jellies, bioluminescence, and adhesive cells.
The unique adhesive cells found in ctenophores, used for capturing prey, are called:
Cnidocytes
Nematocysts
Colloblasts
Ptychocysts
Which of the following accurately describes the nature of the ctenophore digestive system?
Incomplete gut with a single opening
Complete gut with mouth and anus
Complete gut with mouth and two anal pores
Absent, relying solely on diffusion
The comb plates in ctenophores are composed of fused:
Flagella
Microvilli
Cilia
Pseudopodia
Unlike cnidarians, ctenophores lack:
Bioluminescence
Colloblasts
Nematocysts
Comb plates
The cydippid larva of a ctenophore is characterized by:
A medusa-like form
A polyp-like form
Oval shape with eight comb rows
A free-swimming planula
The process of bioluminescence in some ctenophores involves which of the following?
Chlorophyll and sunlight
Luciferin and luciferase
Photoproteins and calcium ions
Carotenoids and fluorescent pigments
Which feature is characteristic of ctenophores?
Nematocysts
Bioluminescence
Radula
Choanocytes
Ctenophores use which structures for locomotion?
Pseudopodia
Flagella
Comb plates
Parapodia