Please explain your reasoning as to how I got the incorrect...

Please explain your reasoning as to how I got the incorrect answers, thank you very much!

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Question 19 0 / 1 point A deficiency in a mobile plant nutrient would be seen first in: Older parts, because they're closer to the roots x Younger parts, because they're further from the roots. Younger parts, because they're closer to the roots O Older parts, because they're further from the roots.

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Water rises in plants primarily by cohesion—tension. Which of the following is false? -b O Positive pressure pulls water up through the xylem. O Cohesion is the tendency for water molecules to stick together by hydrogen bonds. 3: @ Evaporative water loss from the leaves is the driving force for water movement. 0 The water potential of the air is lower than that in the leaf. Which combination of the following weather conditions would cause the greatest amount of water loss from a plant's leaves? Select all that apply, «O Cold ID x C] Dry 3: Humid x Windless (calm) -b J. Hot n x C] Windy

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