In angiosperms, the conduction of water is more efficient because their xylem has vessels. Give reason.

The functions of vascular tissue in plants include (Check all that apply) Check All That Apply physical support of the plant physical support of the plant photosynthesis   transport of water transport of water transport of minerals transport of minerals transport of organic compounds transport of organic compounds transport of gamete transport of gametes

Phytochrome, plays an important role in flowering in many plants.  It can also be used to determine when lettuce seeds germinate (shown in the figure below What is phytochrome likely doing in the lettuce seeds?       Activating abscisic acid production     Activating inhibitors of germination     Inhibiting gibberellin synthesis     Turning on germination-related genes

The winding of grape vine tendrils around a trellis support is an example of     Negative phototropism     Positive thigmotropism     thigmonasty     Negative gravitropism     A circadian rhythm

Discuss the factors responsible for ascent of xylem sap in plants.