A seedling germinating under a stone grows at an angle away from the stone and upward. This response to touch is called ________. a. gravitropism b. thigmonasty c. thigmotropism d. skototropism

If a tree was a person, the leaves would be ____________________ to the branches. A. Medial B. Proximal C. Distal D. Anterior

Far-red light will _________stem elongation and _______seed dormancy. Select one: a. promote, suppress b. suppress, promote c. suppress, suppress d. promote, promote

One of the differences in the seedling groups is   A. after 12 hours moderate light plants have a greater chlorophyll content than the low light plants.   B. after 8 hours moderate light plants have a greater chlorophyll content than the low light plants.   C. after 5 hours moderate light plants have a greater chlorophyll content than the low light plants.   D. after 3 hours moderate light plants have a greater chlorophyll content than the low light plants.

Which of the following is not a typical trait of domestication? a. UV tolerance b. seed dormancy c. increased size of the "useful" tissue of the plant d. flowering response to environmental cues

Exposure to______ can trigger seed germination. a. light c. smoke b. cold d. all can be triggers

38. Which statement about stems is true? a. Gymnosperms have herbaceous stems. b. Woody stems produce xylem and phloem only once during the life of a plant. C. The vascular bundles are arranged in a circle in herbaceous monocot stems. d. Stems connect the vascular tissue from shoot to root

Choose the best answer for following question Grapes can grow larger and exhibit stem elongation. a. auxin                    d. ethyleneb. gibberellin           e. abscisic acidc. cytokinin

The small opening in the integument(s) of the angiosperm egg sac through which the pollen tube enters is known as the _________. Select one: a. Microtubule b. Megapyle c. Venter d. Neck-ring cells e. Micropyle f. none of these choices

all of the follwoing represents seed dispersal adaptaion except  a. hooks on the fruit b. spines on the fruit c. fleshy fruit d. sticky seeds e. fluffy parachute structures on the seeds