Shark Characteristics Include ____ Having Internal Fertilization

question 2

Short Answer

Shark characteristics include
____ having internal fertilization.
____ having isosmotic blood (compared to that of marine water)due to high concentrations of urea and trimethylamine oxide.
____ having teeth of modified placoid scales.
____ being able to detect bioelectric fields.
_____ having a swim bladder to control buoyancy.