A. enlarged hind femora store power for jumping B. short antennae push hemolymph C. flattened forelegs filter plankton D. abdominal spiracles form wings
Correct Answer: A. enlarged hind femora store power for jumping
A. contains many digestive, excretory, reproductive, and respiratory structures B. forms the main biting region C. bears all adult walking legs D. contains only compound eyes
Correct Answer: A. contains many digestive, excretory, reproductive, and respiratory structures
A. lift depends on closed blood circulation B. lift is produced only by the digestive system C. lift is generated as wings move air and create pressure differences D. lift is caused by chewing mandibles
Correct Answer: C. lift is generated as wings move air and create pressure differences
A. wing veins that strengthen the abdomen B. hormonal glands that control molting C. small cervical plates allow flexible head movement D. digestive plates that crush food
Correct Answer: C. small cervical plates allow flexible head movement
A. muscles change thoracic shape to move wings indirectly B. muscles attach only to antennae C. muscles attach directly to wing bases D. muscles work only during molting
Correct Answer: C. muscles attach directly to wing bases
A. internal endocrine glands B. paired posterior sensory appendages in some insects C. mouth hooks used for sucking nectar D. wing veins in the mesothorax
Correct Answer: B. paired posterior sensory appendages in some insects
A. rapid wing beats and precise control keep the insect in one position B. continuous molting during flight C. conversion of wings into legs D. loss of thoracic muscles
Correct Answer: A. rapid wing beats and precise control keep the insect in one position
A. hormonal glands that control molting B. digestive plates that crush food C. wing veins that strengthen the abdomen D. small cervical plates allow flexible head movement
Correct Answer: D. small cervical plates allow flexible head movement
A. muscles change thoracic shape to move wings indirectly B. muscles attach directly to wing bases C. muscles attach only to antennae D. muscles work only during molting
Correct Answer: B. muscles attach directly to wing bases