i believe the answer is "A fundamental role". hope this helps.
Biomes in the temperature zone have been changed the most by human activity.
We can define biomes as the community or group of animals and plants that are distributed or categorized on the basis of common characteristics of environment they are in, five<span> major types of biomes are aquatic, desert, forest, grassland, and tundra.</span>
Yes they do have a cell wall
Answer:
I shall oppose to this notion
personally I think that since there no oxygen on mars the extraterrestrial creatures or alien plants may have alternative means of survival even if there ain't water
It is tested with the blood gas test
