Use​ Descartes’ rule of signs to determine the possible number of positive real zeros for the following function.​  a).

Section IV: Long Answer Questions (34 pts). Answer the following 2 long answer questions. Write Complete Sentences. Each is worth 17 pts.

protogynous

       __________    are collagenous structures in the lamellae of bony fishes that help maintain the structure of lamellae under blood pressure.

Q10

 A                              is a light producing organ in bioluminescent fishes.

1. _______________ is a calcium carbonate structure in the head of bony fishes that serves in balance or hearing.

Briefly describe the different types of photophores found in bony fishes? What do they have in common and how are they distinctive?

 What is the difference between a life cycle and a life history strategy?

                                     describes a fish that spends its adult life in freshwater but migrates to the ocean to spawn.