Maybe immune system and respiratory system
The untreated human waste may never be dumped in inland waters. This is because it is illegal and may also affect the creature that live in the waters. The untreated human waste must be stored in a reservoir in the ship and later disposed in appropriate sewages that are on land.
They are found in bacteria and eukaryotes is false
I believe the answer is C.
because when the dinosaurs thrived they ate most of the mammals which were small animals but when the dinosaurs went extinct the mammals grew larger in size and started to thrive.
this ones simple all the others don't use sunlight because they cant make food within themselves but plants on the other hand use direct sunlight to make their food unlike the others. ;]