Stephanie M. Prezioso, Ph.D. The bacteria Listeria monocytogenes contaminates a variety of meat and plant-based food products. Listeria can use a host plant’s molecules in its own metabolism, and this works differently compared to other species.
Gianni Castiglione, Ph.D. University of Toronto. All vertebrate eyes share a remarkable level of common detail, the most basic of which are its functions to transmit and focus light onto the retina- an incredibly dense nerve cell layer at the back of the eye that acts as a light receiver.
Gianni Castiglione, Ph.D. University of Toronto. Human vision is only possible because of Rhodopsin- a special light-sensitive protein in your retina. New research shows that rhodopsin and the visual system also adapt to changes in temperature.
Stephanie M. Prezioso, Ph.D. A positive feedback loop is the melting of the polar ice caps: as the ice melts, there is less reflection of solar energy, and further melting. A similar feedback loop exists at the molecular level in the bacteria Pseudomonas putida.