Answer:
C
Explanation:
Membranes will allow and inhibit certain ions/molecules. I don't believe it can distinguish whether the molecules are harmful or beneficial!
Synthetic organic pigments are derived from coal tars and other petrochemicals. Inorganic pigments are made by relatively simple chemical reactions—notably oxidation—or are found naturally as earths. Inorganic pigments include white opaque pigments used to provide opacity and to lighten other colours.
Symbiosis I believe. Hope I was of help!
I believe the correct answer from the choices listed above is the last option. <span>Mike has suffered brain damage after only a light blow to the head. Mike could have too much cerebrospinal fluid in the central nervous system. Hope this answers. Have a nice day.</span>