Answer:
The correct answer is "phototropism".
Explanation:
The biological behavior of plants to bend towards the light is called phototropism. If plants failure to perform this behavior is an example of the plants inability to perform phototropism. The molecules that regulate phototropism are the auxins, which bring flexibility to the plant cell's wall and make plants growth towards the light by moving to the darker side of the plant.
Two decades ago, while researching her doctoral thesis, ecologist Suzanne Simard discovered that trees communicate their needs and send each other nutrients via a network of latticed fungi buried in the soil — in other words, she found, they “talk” to each other.