Instead of burning coal to power our country we could use solar panels. As long as we have the sun we will have "free" energy.
Instead of continuing to mine for metals, we could recycle metals and then less greenhouse gases would be released into Earth's atmosphere.
D. He controlled variables by studying one or two traits at a time
Answer:
metaphase
Explanation:
The easiest stage of mitosis to identify under the microscope is the metaphase stage.
<em>The stage is characterized by the alignment of chromosomes at the center (the equator) of the cell forming what is known as the 'metaphase plate'. The metaphase plate can easily be seen at a glance under a focused microscope. Other stages of mitosis are continuous and will take a bit of effort to pinpoint a particular stage from the transition stage. </em>
Needles.
Sharing needles or things that you can eject through your skin (ex. drugs)
Infected tattoo needle that wasn't cleaned and disinfected properly
