Class Insecta: General info (Exam 4) Flashcards

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1
Q

Class insecta

A
  • 1 million

- most abundant and widespread of all terrestrial organisms: REPRESENTS 90% OF LIFE FORMS ON THE PLANET.

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2
Q

Entomology

A

study of insects

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3
Q

Head

A

pair of antennae (highly variable); large compound eyes

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4
Q

thorax

A

3 pairs of legs/2 pairs of wings on the thorax

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5
Q

locomotion

A

walking, flight

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6
Q

exoskeleton

A

composed of a complex system of plates: sclerites

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7
Q

sclerites

A

scleroproteins instead of chitin= light weight for flight

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8
Q

mouth parts

A

chewing, sucking, sponging or lapping, biting

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9
Q

feeding

A

phytophagus, saprophagus

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10
Q

phytophagus

A

feeds on plants

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11
Q

saprophagus

A

feed on dead material, parasitic, predatory

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12
Q

respiration

A

tracheal system: spiracles: pores open to external enviornment

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