Which of the following statements is or are correct about the Cnidarians?
a)It has cnidoblast cells.
b)Cnidoblast cells help in respiration and excretion.
c)Cnidoblast cell release toxins.
d)Its digestion is intracellular.
1
(a) and (c) only
2
(a), (b) and (c) only
3
(c) only
4
(a) and (d) only