In insects body fluids are are drawn into the?

valved ostia

Explanation:

In insects body fluids are drawn into the valved ostia. There are usually 13 pairs of ostia present. These are arranged with ostial valves. The valved ostia are  the openings located with the length of heart and aorta organ. The circulating fluid is known as haemolymph. The peristaltic movement causes haemolymph pumping. These originates from the posterior side of the insect body.

what are the choices?

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands