The Individual Units of Compound Eyes Are Called __________

Q17: Flies and mosquitoes belong to order _.

Q18: As the arthropod ancestors underwent "arthropodization,"<br>A)their circulatory

Q19: A tough,resistant,nitrogenous polysaccharide in the cuticle of

Q20: In complete metamorphosis,the sequence of instars is

Q21: Wing muscles of insects are termed indirect

Q23: The major endocrine organs involved in insect

Q24: Arthropods are similar to annelids in that

Q25: Most species of insects have wings.

Q26: Some mites,such as the _,are very destructive

Q27: Crustaceans are primarily freshwater animals,but there are