Carbon-14 is the radioisotope that is used to determine the age of once-living organisms. Radioactive dating is a technique of comparing the abundance ratio of a radioactive isotope to a reference isotope to determine the age of a material. The mostly used radioisotope is carbon-14, because may rocks and organisms contain this radioisotope.
Answer:
Answers A, B, C, D and E are all correct
Explanation:
Viruses are non living, ultramicroscopic cells, infectious particles with a protein coat surrounding the nucleic acid that replicate inside any life form and infeft them.
Bacteriophages, like viruses that can also infect the animal cells infected by the bacteria.
A because it uses a FAN-BOY
Answer:
D
Explanation:
because the plates make mountains
<span>An ecologist can make a good guess on the type of biome if he knows what type of *plants* are in the area.</span>
