D .............. im pretty sure its this one :)
Answer:
deserts
Desert biomes are the driest of all the biomes. In fact, the most important characteristic of a desert is that it receives very little rainfall. Most deserts receive less than 300 mm a year compared to rainforests, which receive over 2,000 mm.
Explanation:
Answer: water
Explanation: Water is everywhere and required to survive, so water would be the most abundant compound.
The natural water sample contains only one type of bacteria.
A red blood cell's function is to transport oxygen.