What structure of a sunflower allows it to grow very tall without falling over?
a. Sunflowers have thin leaves
b. Sunflowers have deep supporting root systems***
c. Sunflowers have thin stems
d. Sunflowers have large flowers
correct
Thank you.
The correct answer is b. Sunflowers have deep supporting root systems.
To understand why sunflowers can grow very tall without falling over, we need to think about the structural features that provide support. Sunflowers have a strong and deep root system that helps anchor them in the ground. The main root, known as the taproot, grows deep into the soil, providing stability and absorbing water and nutrients from the ground. Additionally, sunflowers have lateral roots that spread out horizontally, further stabilizing the plant.
This deep root system ensures that the sunflower can withstand wind and other environmental factors that could cause it to topple over. By anchoring the plant securely in the ground, the deep roots help to evenly distribute the weight of the sunflower's tall stem and large flower, preventing it from falling over.