They developed to be protected by the hard shell from parasites and ther predators.
D-a trait that helps an organism survive in its environment
A snake is a carnivore so it would be C
Answer:for your journey through the urinary system you must be made small enough to be filtered through the filtration
membrane from the bloodstream Into the renal You will be injected into the subclavian vein and must
pass through the heart before entering the arterial circulation. As you travel through the systemic circulation you have
Explanation: