They were adapted to an environment and once it is taken away the plants will slowly start to die. I'm not 100% :)
Answer:
Example of natural active immunity is fighting off cold and artifical active immunity is building up a resistance to a disease due to immunization and allergic reaction is an response to antigen resulting from active immunity
The answer is auxin can move to the shady side of the stem.
Phototropism is a reaction to environmental factors. It is a plant's response to sunlight in the form of movement. In plants, phototropism is very prevalent. In actuality, it is necessary for plant growth. Other plant movements also occur in response to touch, water, gravity, and other factors. Phototropism was discovered due to well-known experiments by Charles Darwin and Boysen Jensen.
There are two types of phototropism:
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