MEDICAL PHYSIOLOGY

PHYSIOLOGY

GENERAL PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Insects that produce aquatic larvae called naiads are
A
Ametabolous
B
Hemimetabolous
C
Holometabolous
D
None of the above
Explanation: 

Detailed explanation-1: -Hemimetabolous (incomplete metamorphosis) Typical hemimetabolous insects are the Hemiptera (Scales, Aphids, Whitefly, Cicadas, Leafhoppers and True Bugs), Orthoptera (Grasshoppers and Crickets), Mantodea (Praying Mantids), Blattodea (Cockroaches), Dermaptera (Earwigs) and Odonata (Dragonflies and Damselflies).

Detailed explanation-2: -In more advanced insects (e.g., grasshoppers, termites, true bugs) a phenomenon known as gradual, or hemimetabolous, metamorphosis occurs. The hemimetabolous life cycle consists of egg, nymph, and adult.

Detailed explanation-3: -The nymphal stage of hemimetabolous insects lives in water and is called a naiad. The last nymphal instar-or the last stage before the insect molts into an adult-crawls out of the water onto a dry surface so the adult insect can emerge without getting their wings wet.

Detailed explanation-4: -In its later instars, the nymph bears immobile wing pads that become articulated wings at the moult to the adult. This pattern of development is termed incomplete metamorphosis or hemimetabolous development.

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