This is freshman bio pls help

I just won't type a novel noe, rather explain the concept:

2 upper case letters are hom. Dominant,

2 lower case letters hom. Recessive,

mixed letters are heterozygous.

I hope you can answer all questions with that.

if not, let me know in a comment

covalent bonding is a form of chemical bonding between two non metallic atoms which is characterized by the sharing of pairs of electrons between atoms and other covalent bonds.

every el niño cycle is different. every year.