Question

write a short note on lophophore of Braciopoda and proboscis of Acanthocephala​

Answer 1

Explanation:

In brachiopods, the body is enclosed by a shell consisting of a pair of valves. The body occupies the posterior space within the shell, and the body wall forms a mantle that run along the inner surfaces of the valves. The mantle cavity is enclosed between the mantles and contains the lophophore.

The Acanthocephala or thorny-headed worms, or spiny-headed worms are characterized by the presence of an eversible proboscis, armed with spines, which it uses to pierce and hold the gut wall of its host.