Atmosphere
biosphere
hydrosphere
the main oxygen cycle is photosenthisis
The answer for this is "All of above"
Air must pass from the back to the front of the pharynx to enter the trachea and food must pass from the front to the back of the esophagus
Answer:
The plant on the left does not accumulate significant photochlorophyll or carotenoids, so it will become very pale on the shoot tip, while the plant on the right will continue to grow upward as auxin is uniformly distributed around the tip of the right plant.
Explanation:
Phototropism is the orientation of a plant in response to light, either towards the source of light or away from light. Positive phototropism is growth towards light, while negative phototropism is away from light.
Auxin are substances that promote and regulate the growth and development of plants. Auxin escapes light making the area in the shade elongate more so the plant tip moves towards the light.
