Question

40-60 words win 70pts
a) write a note on mouth part of cockroach​

Answer 1

Answer:

The mouthparts of cockroach are biting and chewing type. This biting and chewing type of mouthparts are considered as the most primitive and unspecialized of all the mouthpart types. ... The mouthparts also include Labrum, Mandibles, and a pair of first maxillae, labium, and hypopharynx.

Answer 2

Answer:

Explanation:

mouthparts help the cockroach

• to bite
• chew
• consume soft stuffs
• lap upon liquids.

components of mouth part

• Labrum,
• Mandibles
• a pair of first maxillae
• labium
• hypopharynx.

paragraph of mouthparts

1. Biting and Chewing:

This type of mouth parts are supposed to be the most primitive type as the other types are believed to be evolved from biting and chewing type of mouth parts.

These consist of the labrum forming upper lip, mandibles, first maxillae, second maxillae forming lower lip, hypo pharynx and the epipharynx

1. Biting and Chewing:

This type of mouth parts are supposed to be the most primitive type as the other types are believed to be evolved from biting and chewing type of mouth parts.

These consist of the labrum forming upper lip, mandibles, first maxillae,

 

The labrum is median, somewhat rectangular flap-like. The mandibles are paired and bear toothed edges at their inner surfaces; they work transversely by two sets of muscles to masticate the food. The first maxillae are paired and lie one on either side of the head capsule behind the mandibles. Each possesses a five-jointed maxillary palp which is a tactile organ.

The first maxillae help in holding the food. The second maxillae are paired but fused to form the lower lip. Its function is to push the masticated food into the mouth. The hypo pharynx is single median tongue-like process at whose base the common salivary duct opens. The epipharynx is a single small membranous piece lying under the labrum and bears taste buds.