Http://study.com/academy/lesson/positive-negative-feedback-in-biological-systems.html
Here's a link :)
Answer:
Since it is likely that the weeds in the lake act as a food source for organisms within that ecosystem, killing all the weeds would harm the population that feeds off them, and in turn the populations that feed off of them.
An arc flash can occur when differences of potential voltage reading exists. An arc flash an enormous amount of radiant energy that explodes outwards from electrical equipment, creating pressure waves These high intensity pressure waves can damage a person's hearing or even eyesight.
Answer:
horsetail is a seedless vascular plant
club moss is a seedless vascular plant
Fern is a seedless vascular plant
Moss is a non vascular plant
Liverwort is a non vascular plant
Hornwort is a non vascular plant
