The insect head is essentially a capsule which encloses the brain and bears the usually external (ectognathous) mouthparts, the eyes and a pair of sensory antennae. The mouth part comprise basic sections as:
Correct answer: D. All of these
- A. An 'upper lip' (labrum), lower (ventral) surface of which forms the epipharynx
- B. a tongue-like hypopharynx; the jaws (mandibles)
- C. The paired maxillae and a 'lower lip' (labium).
- D. All of these
Explanation
The standard insect mouthpart plan includes the labrum and epipharynx, hypopharynx and mandibles, paired maxillae, and labium. Therefore, all three listed descriptions are parts of the basic mouthpart structure.
Last updated
Practise Plant Protection
321 free Plant Protection MCQs from Agriculture, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Agriculture questions like this
Agriculture is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
Related questions
2,4-d is synthetic herbicide derived from_______________?
A chemical or secretions which are thrown outside the body for transmitting message to the individual of same species is_________________?
A chemical which causes plant does it called __________________?
A dose of a toxicant that kills 50% of the exposed organism is called_________________?
A few species of ants and termites which depend on cultivated plants are___________________?