B. Salmon envolved before kangaroos
<span>Independent variable: Time plants are watered (ex. 8am, 12pm, 4pm, 8pm, 12am)
Dependent variable: growth of the plant
Controlled variable: 1. same type plants, 2. same amount of sunlight, 3. same type of dirt, 4. same type of water, 5. same amount of water (each are self explanatory of how to control)</span>
Answer:
Because phloem transports minerals and other solute. particles from lower parts to the stem in bidirectional manner. That is why in spring sugar solution rises quickly through phloem in plant stem