Answer:
Explanation:
cells, tissues, organ, and body system.
When the Earth formed, the radioactive materials that naturally occurred in the environment heated the planet. These radioactive materials generate heat when they decay. This heat generated is then transferred to the surface of the Earth.
The radioactive materials have no role in increasing the gravity of the Earth or poisoning the soil. Moreover, the naturally occurring radioactive materials are still present and has not disappeared.
Hence, the answer is heated the planet.
Answer:
12 chromatids.
Explanation:
If a cell has 6 chromosomes in the G2 phase will have 12 sister chromatids during that same phase because replication of chromosomes occurs which produces two exact copies of each chromosomes. Then 6 chromatids are distributed in one daughter cell while the other 6 chromatids are distributed in other daughter cell and finally the cell division occurs.
DNA is the genetic material that controls cell activities<span>. </span>In eukaryotic cells<span>, the membrane that surrounds the </span>nucleus<span> which is commonly called the nuclear membrane , partitions this DNA from the </span>cell's<span> protein synthesis machinery, which is located </span>in<span> the cytoplasm.</span>
