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plants that are adapted to live in hot, dry conditions.
the difference between the concentrations of a specific molecule in two adjacent areas.
reproductive or sex cells that contain the haploid set of chromosomes. The male gametes are...
the outer region of the kidney, grainy in appearance, in which the Bowman's capsules of the...
the second biological classification group (taxon) that is divided into phyla (for animals) or...
a molecule that accelerates (speeds up) a chemical reaction, by lowering its activation energy,...