(i)
Paniostic ovariole
: Lacks specialized nutritive cells so that it contains only a string of follicles,
with the oocytes obtaining nutrients from the haemolymph via the follicular epithelium. e.g.
Cockroach.
Ovarioles of the other two contains trophocytes (nurse cells) that contribute to the nutrition
of the developing oocytes.
(ii)Telotrophic ovariole
: (
Acrotrophic
) The trophocytes are confined to the germarium and
remain connected to the oocytes by cytoplasmic strands as the oocytes move down the ovariole,
e.g. bugs.
(iii)
Polytrophic ovariole
: A number of trophocytes are connected to each oocyte and move
down the ovariole with it, providing nutrients until depleted, thus individual oocytes alternate with
groups of smaller trophocytes. e.g. moths and flies.
Accessory glands of the female reproductive tract are often called as
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