One half-life after a radioactive isotope is incorporated into a rock there will be only half of the original radioactive parent atoms remaining and an equal number of daughter atoms will have been produced.
A five-carbon sugar, a phosphate group, and a nitrogenous base.
Hope this helps.... BTW this is on brainly
Answer:
The Cell Theory:
Explanation:
1.cells are the basic human of structure and function of all living things
2. cells are the smallest part of a living that that is alive a keeps the organism alive
3. all cells from from other cells
4. cells are damaged or destroyed, so they need replacing
hope this helps