Because of Van Der Waals force the water molecules attract each other and stick together ...
In living organisms, cell division is the means by which development and growth take place. The survival of the living cells depend on interaction with other cells. The process of cell division in developmental stages of growth involves round of cell divisions during which the cell become increasingly more specialized and organize in certain pattern. This interaction during this stage mold the overall morphology of the organism.
You did not provide an image for me, but I can explain.
Homozygous, with the root homo, means same. Therefore, a guinea pig parent with homozygous traits would have the traits being the same - either both recessive or both dominant, ie TT, tt.
Heterozygous on the other hand means different, therefore the traits would be one dominant and one recessive - for example, Tt.
If for the punnet square it has different traits (Combo RB for red and black or combo RW red white for like fur color) than heterozygous would be any that isn’t like TT or tt or any other letters used.
Hope this helps!