A. expand tracheal volume and support ventilation in active insects B. form mandibles in larvae C. digest cellulose in the cuticle D. make eggs resistant to predators
Correct Answer: A. expand tracheal volume and support ventilation in active insects
A. pore where air enters the tracheal system B. opening where eggs leave the ovary C. site where nerve signals stimulate muscle fibers D. region where cuticle becomes waxy
Correct Answer: C. site where nerve signals stimulate muscle fibers
A. oxygen is carried mainly by red blood cells B. blood remains completely inside capillaries C. water moves only through kidneys D. hemolymph bathes organs directly in the hemocoel
Correct Answer: D. hemolymph bathes organs directly in the hemocoel
A. cuticle and epidermis circulate blood B. dorsal vessel and hemocoel digest food C. ovaries and testes form wings D. brain and ventral nerve cord coordinate behavior
Correct Answer: D. brain and ventral nerve cord coordinate behavior
A. region where cuticle becomes waxy B. site where nerve signals stimulate muscle fibers C. opening where eggs leave the ovary D. pore where air enters the tracheal system
Correct Answer: B. site where nerve signals stimulate muscle fibers
A. blood remains completely inside capillaries B. oxygen is carried mainly by red blood cells C. water moves only through kidneys D. hemolymph bathes organs directly in the hemocoel
Correct Answer: D. hemolymph bathes organs directly in the hemocoel
A. brain and ventral nerve cord coordinate behavior B. cuticle and epidermis circulate blood C. ovaries and testes form wings D. dorsal vessel and hemocoel digest food
Correct Answer: A. brain and ventral nerve cord coordinate behavior
A. site where nerve signals stimulate muscle fibers B. region where cuticle becomes waxy C. pore where air enters the tracheal system D. opening where eggs leave the ovary
Correct Answer: A. site where nerve signals stimulate muscle fibers