Sickle-cell disease is common in tropical and sub-tropical regions because being a carrier, carrying a single sickle-cell mutation (sickle cell trait), affords some resistance to malaria.
Answer: Carbon Dioxide, Water, Chemical, Radiant, Glucose, and Oxygen
Explanation: This is in order for the line they should be in
It makes sure they are in perfect condition for it to go through the cell cycle easier
The answer is A. a light wave
C and D both need water as a medium and sound needs air to vibrate in order to travel. light, on the other hand, does not need a medium
