To which one of the following categories does adipose tissue belong?
Epithelial
Connective
Muscular
Neural
B.
Connective
Explain the digestive system of cockroach.
The digestive system consists of the alimentary canal and digestive glands. The alimentary canal of cockroach is divided into foregut, midgut, and hindgut.
The mouth opens into a short tubular pharynx, leading to a narrow tubular passage, the oesophagus. The oesophagus opens into a sac-like - crop, which is used for storing food. The crop is followed by a gizzard or proventriculus.
Gizzard consists of six - chitinous plates called teeth which help in grinding food. The entire foregut is lined by the cuticle.
A ring of six - eight blind tubular structures called hepatic or gastric caeca is present at the junction of foregut and midgut which secrete digestive juice.
At the junction of midgut and hindgut is present another ring of yellow coloured thin filamentous malpighian tubules which help in removal of excretory products from haemolymph.
The hindgut is broader than midgut and is differentiated into the ileum, colon, and rectum.
The rectum opens out through the anus.
Which one of the following is not a connective tissue?
Bone
Cartilage
Blood
Muscles
D.
Muscles
Which one of the following types of cell is involved in making of the inner walls of large blood vessels?
Cuboidal epithelium
Squamous epithelium
Squamous epithelium
Stratified epithelium
C.
Squamous epithelium
Switch
