Structural Organisation in Animals

Option (c) is correct, female cockroach is characterised by the presence of one pair spermatheca that opens in genital chamber.

$\bullet$ Anal styles are characteristic feature of male cockroach.

$\bullet$ Each ovary in female in made up of ' 8 ' ovarioles or ovarian tubules.

$\bullet$ Genital pouch is a large boat-shaped structure formed by 8th and 9th sternum.

Goblet cells are found in mucus secreting organs like intestinal and respiratory tract. Their main function is to protect the mucus membrane where they are found.

Paneth cells are found in lining of small intestine. It secrete antimicrobial molecules which help to maintain the gastrointestinal barrier.

Oxyntic or Parietal cells are located in gastric glands of stomach. It secrete HCl and intrinsic factor.

Peptic cells or Gastric chief cells are found in stomach where they secrete pepsinogen and chymosin.

The provided diagram depicts a type of tissue involved in secretion and absorption.

The diagram is indicative of simple cuboidal epithelium tissue. This tissue type is characterized by:

A free surface.

A single layer of cube-like cells resting on the basement membrane.

Cells that are compactly packed together with minimal intercellular spaces.