Question

myocytes of sponges show?
(a)contractability
(b) nervous excitation
(c)secration of fibres
(d) all of them​

Answer 1

Answer:

Myocytes are modified contractile amoebocytes arranged around osculum. They guard and regulate the osculum, i.e., they work as a sphincter. They are long and fusiform cells which are found in the osculum. These cells are also found in many another contractile areas of sponges.

So, the correct answer is 'Contractibility'.