ANSWER
Mixture
Explanation: the air is composed of nitrogen and oxygen
Answer: Organelles, Cell, Proteins, Tissue, Organ, Organism.
Explanation: I hope this helps, I had this subject a month or so back and I still have my notes.
Lithium, some antibiotics, ingesting large amount of penicillin <span />
The highest level<span> of </span>organization<span> for living things is the biosphere; it encompasses all other </span>levels<span>. The biological </span>levels<span> of </span>organization<span> of living things arranged from the simplest to </span>most complex<span> are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.</span>
It surrounds the cell membrane and provides cells with structural protection and support. It also helps filter.
