1. Make an observation
2. Form a question
3. For a hypothesis
4. Conduct an experiment
5. anazlyze the data and draw a conclusion
The number of mitochondria per cell varies widely; for example, in humans, erythrocytes (red blood cells) do not contain any mitochondria, whereas liver cells and muscle cells may contain hundreds or even thousands. The only eukaryotic organism known to lack mitochondria is the oxymonad Monocercomonoides species.
Conservation and by recyclig we can improve biodiversity
Plants, Animals, and bacteria