Answer:
D. rigidity and shape that's why in plants they stand upright for photosynthetic process.
Answer:
how much should examples should I give
Mountain lions with lots of variation because variation is important for species’ survival. If there is an environmental change that negatively affects organisms with a certain trait, variation can insure that the entire species will not be wiped out because some organisms within that species might not have that trait and can survive.
Your answer should be tissues.
