B) If a tree falls in a forest but this is never witnessed by a human, there are no physical or biological consequences.
The layer where organisms can exist on the surface of the earth is the. biosphere. You are conducting an experiment to determine which brand of fertilizer results in the greatest amount of fruit production by tomato plants. In this example, the response variable would be the.
E) In a food chain, one population feeds on another.
B) If a tree falls in a forest but this is never witnessed by a human, there are no physical or biological consequences.
The layer where organisms can exist on the surface of the earth is the. biosphere. You are conducting an experiment to determine which brand of fertilizer results in the greatest amount of fruit production by tomato plants. In this example, the response variable would be the.
E) In a food chain, one population feeds on another.