Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area.
Plants showing <span>hydrotropism</span> in response to water.
The one that was so momentous about the "twofold" some portion of the twofold helix atom is it proposed how hereditary data could be replicated and acquired. Double helix is a long, straight atom made of littler units called nucleotides that shape a chain.
External respiration hope this helps
