2019 years have humans been on earth
Answer:
A.
half of its genetic material from each parent.
The answer would be decreases.
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According to sources, the most probable answer to this query is that nephrons found in the kidney are responsible for filtering out waste in the blood cells. The resulting product is urea.
This is then excreted to the body.
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Answer: Respiration in Animals.
Explanation:
This is a body systems which involves the intake of oxygen, and the release of carbon dioxide ,(breathing),for the breakdown of digested food substances for example (glucose), to generate energy.
Most organisms make s use of oxygen for survival they are aerobes, while some organisms thrived in absence of Oxygen; these are anaerobes.The