How do scientists learn about earth’s core? a. earthquake waves b. mines c. temperature measurements d. wells

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 .

Diffusion and osmosis are forms of passive transport

Which is the function of the hypothalamus in thermoregulation? answers: -sensor -effector -stimulus -intergrating center it's either a or c i believe