Which evidence best support the big bang theory?

a. rate of rotation of the sun
b. existence of cosmic background radiation
c. uniform radioactive decay of uranium-28
d. separation of earth’s interior into different layers

Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical?

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half

Study this image which statement best describes the rock shown check all that apply