Sexually and Asexually. Sexual reproduction is when two different organisms give parts of themselves to produce a unique offspring. Asexual reproduction is when one organism creates essentially a copy of itself.
That is the main difference between sexual and asexual reproduction. Sexual reproduction just means combining genetic material from two parents. Asexual reproduction produces offspring genetically identical to the one parent.
A hanging valley is a valley which is cut across by a deeper valley or a cliff. Hanging valleys are created where smaller valleys meet the main (glaciated) valley
