some important molecules are too large to pass through the cell membrane.
Hope this helps!
-Payshence
"genotype (n.) the particular alleles at specified loci present in an organism. Synonyms: constitution. makeup." Hope this helps
Red tide is a common name for algal blooms, which are large concentrations of aquatic microorganisms, such as protozoans and unicellular algae.
The upwelling of nutrients from the sea floor, often following massive storms, provides for the algae and triggers bloom events
