How do tropisms help plants survive?
A. Plants grow together with other plants.
B. Plants grow toward things they need.
C. Plants create their own food using chlorophyll.
D. Plants limit their needs in harsh conditions.
B. Plants grow toward things they need.
A plant is observed to have deep roots and tendrils that wrap around objects. Which pair of tropisms correctly describe these responses?
A. hydrotropism and thigmotropism
B. phototropism and thigmotropism
C. geotropism and phototropism
D. hydrotropism and geotropism
D. hydrotropism and geotropism
Pole beans need something to grow around and up. Which kind of stimuli can encourage this type of growth?
A. touch
B. gravity
C. light
D. water
A. touch
What is xylem?
A. tube-like structures that move water through vascular plants
B. tube-like structures that move food through nonvascular plants
C. tube-like structures that move water through nonvascular plants
D. tube-like structures that move food through vascular plants
A. tube-like structures that move water through vascular plants
Which component is found in both vascular and nonvascular plants?
A. roots
B. leaves
C. chlorophyll
D. stems
C. chlorophyll
In which part of a flowering plant does photosynthesis occur?
A. flower
B. leaf
C. stamen
D. root