B) Vacuoles allow water to enter and exit the paramecium.
Answer:
colorblidness is carried on the X cromasome. since it is resessive it can be covered up. woman have 2 X cromasomes so both have to have it or she wont be color blind. men only have one X cromasome so its more likely that their just one X can have it
Explanation:
So that it can sustain different life that requires different environments. Angler fish, for example, require a dark and cold environment to thrive while tuna require a light and warm environment.
Answer:
D the current changes are mush smaller than in the past.
The Central Nervous system is made out of spinal cords that connect to the brain.