Synthesize in two to three pages the external and internal morphological adaptat

Synthesize in two to three pages the external and internal morphological adaptations of fishes in general and of Carassius auratus, Poecilia sphenops and P. reticulata in relation to their habitats and behaviors a
NOTE: The main objective of this section is to familiarize yourself with the functional-evolutionary diversity of fishes. Make sure you cover the following aspects:
● Body shape and coloration
● Mouth type, position, size, teeth type
● Anatomy of the fins (size, shape)
● Digestive systems (length of the intestines, carnivores, omnivores, herbivores)
● Types of behaviors
● Freshwater vs. salt-water habitats