NURSING ANM AND GNM

NURSING EXAM QUESTIONS

PATHOLOGY AND GENETICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The nonfeeding stage of develpment for an insect is what?
A
Crop
B
Pupa
C
Larva
D
Instar
Explanation: 

Detailed explanation-1: -pupa Non-feeding, developmental stage during which an insect undergoes complete metamorphosis. It generally occurs as part of a four-stage life cycle from the egg, through larva (such as a caterpillar), to pupa, then imago (winged adult).

Detailed explanation-2: -Pupa: When insects undergo complete metamorphosis, this is the form in between the last larval instar and the adult. In this stage, the insect does not usually feed or move around much.

Detailed explanation-3: -Pupa is the stage in the development of holometabolous insects between the mature larva and the adult wherein major morphological reorganization takes place.

Detailed explanation-4: -The pupa is a non-feeding, usually sessile stage, or highly active as in mosquitoes. It is during the pupal stage that the adult structures of the insect are formed while the larval structures are broken down. The adult structures grow from imaginal discs.

Detailed explanation-5: -Some insects spend the winter in the pupal stage. The pupa can be one of three forms: exarate, with the appendages not attached to the pupal skin; obtect, with the appendages attached to the pupal skin; or coarctate, where the pupa occurs within the shed exoskeleton of the last larval stage.

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