Question

1. what do scientists believe the function is of the fiber cells of placozoa?

• digestion
• nerve impulses
• hormone regulation
• movement

Explanation:

Placozoa's fiber cells are believed to be involved in movement. Digestion is handled by other cell types, nerve impulses are not a function of these fiber cells (as placozoa lack a nervous system), and hormone regulation is not associated with their fiber cells. So the function of fiber cells in placozoa is movement.

Answer:

D. movement