NR 506 REVIEW SHEET QUESTIONS 2026
VERIFIED ANSWERS
⫸ What is the cuticle made from?. Answer: Chitin
⫸ Arthrodial membrane. Answer: Resilin membrane between
segments
⫸ integument. Answer: Outer layer of exoskeleton
⫸ Sclerotization. Answer: Hardening or thickening of cuticle
⫸ Ultrastructure. Answer: Defensive, sexual display, or mimicry
structures on cuticle
⫸ Sternum and tergum. Answer: Bottom and top of abdomen
⫸ Pleuron. Answer: Arthrodial membrane the sternites and tergites
sit on
⫸ Filiform antennae. Answer: linear and slender
⫸ Serrate antennae. Answer: saw-like
, ⫸ Flabellate antennae. Answer: fan shaped
⫸ Hemocoel. Answer: Insect body cavity
⫸ Hemolymph. Answer: insect blood
⫸ spiracles and trachea. Answer: External lungs and silvery
filamentous tubes
⫸ Fat body. Answer: Organ that stores proteins, synthesizes
hemolymph proteins, and regulates blood sugar
⫸ gastric caeca. Answer: Midgut protrusions that secrete digestive
enzymes
⫸ malphigian tubules. Answer: Yellow filamentous tubes, insect
kidney
⫸ Dorsal vessel. Answer: Insect heart
⫸ peritrophic membrane. Answer: Midgut barrier that food needs to
pass through
⫸ Pro-ovigenic. Answer: all eggs mature at adult emergence
VERIFIED ANSWERS
⫸ What is the cuticle made from?. Answer: Chitin
⫸ Arthrodial membrane. Answer: Resilin membrane between
segments
⫸ integument. Answer: Outer layer of exoskeleton
⫸ Sclerotization. Answer: Hardening or thickening of cuticle
⫸ Ultrastructure. Answer: Defensive, sexual display, or mimicry
structures on cuticle
⫸ Sternum and tergum. Answer: Bottom and top of abdomen
⫸ Pleuron. Answer: Arthrodial membrane the sternites and tergites
sit on
⫸ Filiform antennae. Answer: linear and slender
⫸ Serrate antennae. Answer: saw-like
, ⫸ Flabellate antennae. Answer: fan shaped
⫸ Hemocoel. Answer: Insect body cavity
⫸ Hemolymph. Answer: insect blood
⫸ spiracles and trachea. Answer: External lungs and silvery
filamentous tubes
⫸ Fat body. Answer: Organ that stores proteins, synthesizes
hemolymph proteins, and regulates blood sugar
⫸ gastric caeca. Answer: Midgut protrusions that secrete digestive
enzymes
⫸ malphigian tubules. Answer: Yellow filamentous tubes, insect
kidney
⫸ Dorsal vessel. Answer: Insect heart
⫸ peritrophic membrane. Answer: Midgut barrier that food needs to
pass through
⫸ Pro-ovigenic. Answer: all eggs mature at adult emergence
