What is geologic time? a) a period of time during which only rocks existed b) a unit of time used to measure rock formation c) the period before humans appeared on earth d) the time that has passed since earth formed

What are examples of the plant life and animal life that can be found in each type of terrarium

In cattle a single gene with two alleles determines fur color the fur can be red white or roan roan fur has both red and white hair which of the following statements is true a the allele for roan fur color is dominant over red and white fur color b the allele for red fur color is dominant over white and roan fur color c the roan and white alleles are expressed independently of the other d the red and white alleles are expressed independently of each other

When are the centromeres broken in meiosis?