The area around the rock will have weathered down and the rock will eventually either break or it will fall down the mountain
Chloroplasts are organelles specialized for photosynthesis. Animals do not photosynthesize; therefore, they do not need chloroplasts.
From the food they intake in different ways such as Plants or other animals such as insects which are their fuel
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
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