The small intestine consists of

(A) duodenum, jejunum and ileum
(B) duodenum, caecum and ileum
(C) duodenum, jejunum and rectum
(D) caecum, colon and rectum

The answer is: (A) duodenum, jejunum and ileum

Flame cell is typical of:

(A) Annelida
(B) Chordata
(C) Porifera
(D) Platyhelminthes
(E) None of these

The answer is: (D) Platyhelminthes