वे जीव जिनका शारीरिक तापमान उनके परिवेश के तापमान के बढ़ने और घटने के साथ बदलता रहता है, उन्हें ________ कहा जाता है।

Select the incorrect statements from the following: A. Digestive system in Platyhelminthes is incomplete. B. Bilateral symmetry is a characteristic feature of adult Echinoderms. C. Pseudocoelom is possessed by Aschelminthes. D. Notochord is persistent throughout life in the class Chondrichthyes. E. Members of class Reptilia maintain a constant body temperature. Choose the correct answer from the options given below:

Select the set of fishes that belong to the class Osteichthyes: