Hydrogen bonds between nucleotides
C bc it deals with both of those systems
Answer:
As the liquid freezes the atoms within the liquid slow down because they lose energy, they then begin to form neat rows and turn into a solid.
:)
'Red shift' is a key concept for astronomers. The term can be understood literally - the wavelength of the light is stretched, so the light is seen as 'shifted' towards the red part of the spectrum.
Hope this helps.
Its A directional because <span>In directional selection, selection pressures favor an extreme, in this case, short </span>plants<span>.tall</span>
