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.
Tropisms are vital for a plant's survival as they help them respond to their environment and obtain the necessary resources for growth and survival. For example, phototropism allows plants to grow toward sources of light which is essential for photosynthesis, the process through which they create their own food using chlorophyll (option c).
Other types of tropisms include gravitropism (response to gravity), hydrotropism (response to water), and thigmotropism (response to touch). These tropisms enable plants to find water, essential minerals, and physical support, which are all crucial for their growth.
In harsh conditions, such as areas with limited resources or extreme climates, plants may exhibit tropisms that limit their needs (option d). For example, plants in arid environments may exhibit hydrotropism, growing their roots toward sources of water to minimize water loss.