We can learn what animal it was
Option (a) has a greater chance of being the answer — the respiratory system does take in Oxygen to break down glucose into Carbon dioxide and water vapor, releasing energy.
Answer:
Earths Rotation
Explanation:
Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.
<span>C. When birds moved into the field, they changed the environment and selected against the blue butterflies</span>
