It is part of male cockroach
Anterior aorta
Mouth parts
Vas deferens
All given
Which of the following statement is/are correct regarding digestive system of cockroach?
$(i)$ Mouth opens into a short tubular pharynx, leading to a narrow tubular passage called oesophagus.
$(ii)$ Gizzard helps in grinding the food particles.
$(iii)$ A ring of $6-8$ blind tubules called hepatic or gastric caecae is present at the junction of foregut and midgut, which secrete digestive juice.
$(iv)$ At the junction of midgut and hindgut is present another ring of $100-150$ yellow coloured thin filamentous malphigian tubules which help in removal of excretory products from haemolymph.
In cockroach, male genital open into.....
Mention the function of the following
Malpighian tubules
Respiratory pigment in cockroach is
....... is function of nephrocytes and urecose gland.