Answer:
The clear water representing blood, which runs through the
plastic tubes, will become green as particles from the cardboard tube
are absorbed.
Explanation:
the bold letters are answers
Researchers and doctors hope stem cell studies can help to increase understanding of how diseases occur, and to better understand how diseases and conditions develop.
<span>The major benefits to replacing fossil fuels with solar panels and wind turbines to meet our energy needs would be </span><span>Wind and solar power are renewable resources and do not contribute to climate change.
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Renewable resource is much better for long term result because it wouldn't damage the environment and we can utilize it indefinitely. </span>
The purpose of an experiment is to compare results with others.
