Question
Biology Question on Kingdom Animalia
Biradial symmetry and lack of cnidoblasts are the characteristics of
A
Hydra and Starfish
B
Starfish and Sea anemone
C
Ctenoplana and Beroe
D
Aurelia and Paramecium
Answer
Ctenoplana and Beroe
Explanation
Solution
Ctenophora is a small phylum of exclusively j marine, invertebrate animals. Ctenoplcma and Beroe j are examples of ctenophora. They have biradial symmetry (a combination of radial and bilateral symmetries). They lack the specialized stinging cells (nematocysts) found in coelenterates, but one species (Haeckelici rubra) incorporates those of its jellyfish prey for its own defense.