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Mandible (insect): Quiz


Question 1: Most adult ________ have mandibles that follow the general form, as in grasshoppers.

Question 2: Certain ________ larvae (family Lampyridae) that feed on snails have grooved mandibles that not only physically break down their prey, but also deliver digestive fluids by these grooves.

Question 3: This same simple structure is seen in all of the remaining Polyneopteran insect orders, with the exception of the Paraneoptera (________, Thysanoptera, and Phthiraptera).

Question 4: ________ (thrips) have a variation of piercing mouthparts.

Question 5: ________ mandibles are a pair of appendages near the insect’s mouth, and the most anterior of the three pairs of oral appendages (the labrum is more anterior, but is a single fused structure).

Question 6: Nearly all adult ________, and many beetle larvae, have mandibles.

Question 7: All but a few adult ________ lack mandibles, with the remaining mouthparts forming an elongated sucking tube.

Question 8: The ________, and other insects whose mouthparts are described as piercing-sucking, have modified mandibles.

Question 9: Likewise, the mandibles of adult and larval Odonata are simple and generalized, while ________ rarely feed as adults, though the larvae ("nymphs") have simple mandibles.

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