Divide into parts (Usally goverment or states ei, cicil war, north south spilt into 2
The radiation from the sun
Different forms of a given gene are known as alleles
This is the correct answer.
The probability of two tossed coins will come down as heads is 1/4. Because you have to calculate the probability of 1/2, multiplied with the probability of the other one - 1/2
The elevation changes of the mountain that cause different climates and altitudes
