Tad poles have gills that help them breathe underwater. frogs have lungs that help them breathe underwater. tadpoles have tails and fins to help them swim underwater. frogs have arms and legs to help them swim.
If somebody gets a head injury, they may be susceptible to a concussion, brain swelling, bleeding within brain tissue, skull fracture, tissue damage, etc.
A spinal injury could cause things like, paraplegia, motor skill loss, nerve damage, etc.
No over weight people and daily exercisers also you won't see them eating many fatty foods
The correct answer would be lead paint. Even though there has been a decline in the amount of lead based paint that is used nowadays, still the largest source of lead poisoning in children in America comes from dust and chips from deteriorating lead paint on the inside walls of their homes and schools.