"The Light Eaters" by Zoe Schlanger

We are reading “The Light Eaters”.  It is about research into plants.  I am not the plant person that Lynn is.  I know they usually need good soil and water.  I know they are important parts of our diet and the diets of most animals, if not all.  A major angle of this look at current research into plants has to do with plants not having anything like a brain.  Yet, they seem intelligent.  How do they accomplish all that they do with no brain?  Can they see?  Can they remember?  How?  We have plenty of plants around and in our house.  Are we in danger?