Answer:
Exercise boosts energy
Regular physical activity can improve your muscle strength and boost your endurance. Exercise delivers oxygen and nutrients to your tissues and helps your cardiovascular system work more efficiently. And when your heart and lung health improve, you have more energy to tackle daily chores.
The answer I believe is- Dominant Gene
Using my knowledge abiotic factors include things such as wind, rainfall, sunshine, etc. If there are multiple choices to choose from then I could be more specific.
The organ that creates urea are the kidneys..
The main difference between arteries and veins<span> is the job that they do.
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Arteries<span> carry oxygenated blood away from the heart to the body, and </span>veins<span> carry oxygen-poor blood back from the body to the heart. Your body also contains other, smaller blood vessels.</span>
