Problem:

Question 1: Which of the following phyla of animals does not molt?

a) Nematoda
b) Nematomorpha
c) Arthropoda
d) Annelida
e) Tardigrada

Question 2: Active stages of juvenile insects that undergo holometabolous metamorphosis are called ____________ because they are very different from the adult morphology.
a) pupae
b) larvae
c) nymphs
d) juveniles
e) naiads

Question 3: Most aquatic insects, particularly immature stages, are reliant on _____________ for respiration.
a) book lungs b) setae
c) gills
d) oxipores
e) spiracles

Give reasoning with your answer.