I believe the answer you're looking for is Archaea-bacteria.
Answer: increased
Explanation: the more you have the better you can tell where something is acting on you, ie touch
The actually speed of sound in water is 1,498, which is closest to 1,500 meters per second.
-Steel jelly
The hedgehog are animals with spiny armor that protects it from predators and cushions its falls from trees. Animals have different survival mechanisms and means to protect themselves from possible predators. For example; a Camel has long eyelashes and hair-lined ears that blocks blowing sand, can close its nostrils to keep sand out. Others like Koala uses specially designed hands and feet and a thick, padded tail to hold on to tree branches for long periods of time.
Answer:
!! neither mechanical nor chemical digestion
