They have very sharp teeth to cut through their prey, or try to escape if they are trapped
Their bodies are very narrow, enabling them to be very quick and nimble, it also enables them to hide it tight spaces
Their teeth also enables them to escape a fishermen's line ( I'm a fishermen and I've lost many barracuda due to those teeth.)
I hope this helped
They developed to be protected by the hard shell from parasites and ther predators.
Answer:
The answer is d. carbon-12, potassium, and argon
Endocytosis is taking stuff in while exocytosis is getting rid of the stuff and putting it out
