The photograph shows an alarm clock ringing. What is the medium for the sound waves?
O A. Air
O B. Rocks
O C. Water
D. Ears

Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .

How many autosomes are in this human karyotype? how many sex chromosomes?

The assembly called for a "bill of rights" that would list u.s. citizens'