Describe structure of alimentary canal of nereis and its feeding mechanism.
Answers
Answered by
1
Answer:
Explanation:
It communicates with stomach–intestine, which is a more or less straight tube that is constricted in each segment. A distinct stomach is absent in Nereis. Epithelial lining of mid-gut contains gland cells which secrete digestive enzymes. Rectum is the last part of intestine and opens to outside by anus.
Nereis dumerilii is carnivorous and devours small animals like crustacea and small molluscs. It seizes the food by means of jaws and teeth. The entire bucco-pharyngeal region during capture of prey is everted out.
Similar questions