Two signaling molecules — strigolactone and ethylene — can work independently to begin the process of leaf senescence.
Dr. Richard Buggs is a plant biologist and professor of evolutionary genomics at Queen Mary, University of London.
The re-usage of highly similar and complex parts in widely different organisms in non-treelike patterns is best explained by the action of an intelligent agent.
If redwoods are a byword for great stature, grasshoppers represent the opposite. And what insect could be more common or familiar?
These methods send a powerful symbolic statement that we are essentially nothing more than carbon atoms gathered temporarily in a rational and animated form.