Answer: 1.3 to 1.1 billion years.
Explanation: The oldest rocks in the New York Bight region are found in surface outcrops throughout the Highlands region. These exposures of Precambrian "basement rock" have been estimated at 1.3 to 1.1 billion years old.
Answer:
1) The alleles for homozygous brown hair will be BB.
2) The alleles for heterozygous brown hair will be Bb
3) Let's make a punnet square to check for the outcomes:
B b
B BB Bb
B BB Bb
4) The results from the punnet square depict that the phenotype of all the children produced will be brown hair.
5) The punnet square depicts that there will be a 50% probability of the child to carry the heterozygous genome (Bb) and there is also 50% probability for the child to carry homozygous dominant genome (BB).
There are at least 4 traits that mammals share including the fact that they are warm-blooded. Other traits include breathing with lungs, having a 4 chambered heart, and having to hunt for food.
I hope this helped. <3