Which of the following sequences correctly lists how the blood (hemolymph) moves in the open circulatory system of an arthropod?

The complex chewing apparatus found in sea urchins is called __________________.

In the Hexapoda, the terms “entognathous” and “ectognathous” refer to the location of the ________________________.

The adults of some fish species live in the ocean, but move to fresh water to reproduce. In these species, larval development takes place in fresh water before individuals migrate to the ocean to live as adults. We would refer to this system as what?

Insects respire using a series of tubes known as _________________.  Some spiders use a similar structure, but many also have a structure unique to spiders called ____________________.   [BlankX] [BlankY]

Vertebrate gills originated in pharyngeal slits used for filter feeding.

Crustaceans are characterized by uniramous appendages.

The largest arthropod subphylum (in terms of species number) is Hexapoda. 

The pupa stage is seen in insects that undergo __________________ metamorphosis, while nymphs are seen in insects that undergo __________________ metamorphosis.     [blank1] [blank2]

In the Deuterostomia, the anus develops from the blastopore.