This is only one part of the answer, but its important: high-altitude O2 absorbs much energy from the sun (including radioactivity), which forms the ozone layer. this process protects delicate molecules important to life - most notably dna
Answer:
both permeable
Explanation:
the cell wall is fully permable however the the cell membrane is selectively permable, there's little to no similarities between them, mainly differences as they're from two different cells completely
the internal structures provide shapes and support to a variety of living organisms both unicellular and multicellular
This statement giving a clue that there is asexually reproduction (may be binary fission) taking place and the progenies in asexual reproduction are genetically similar to parent cell. So answer is A.
