Answer:
1. Bacteria where grow in a medium composed of heavy nitrogen. After several generations the bacteria DNA was composed of heavy nitrogen (heavy nitrogen is an isotope of nitrogen).
2. After several generations had passed, the bacteria were transferred to a nitrogen light medium.
3. As soon as the bacteria were transferred the bacteria DNA was isolated after the first and second generation through centrifugation.
4. Results: after 2 generations half of the DNA was intermediate and half was light; there was not heavy-only DNA. The conclusion was that the new DNA is formed by an "old" strand and a "new" strand producing an intermediate weight.
Answer;
-Mitochondria
Explanation;
-Mitochondria is a cell organelle where ATP is generated, it act as a powerhouse of the cell. ATP is generated through the process of cellular respiration.
-Cellular respiration is the process by which cells break down nutrients such as glucose to release energy in form of ATP, which is used by the cells to drive cellular processes such as growth and transport. The process involves three stages ; namely, glycolysis, citric acid cycle and electron transport chain, when oxygen is present.
Growth, reproduction, they <span>are made up of cells, </span>they<span> respond and adapt to their environment, and obtain and utilize energy.</span>
