Animals in Chile. The beautiful country of Chile is home to a variety of animals. Each species has adapted to each of the country's three main habitats consisting of the Andes Mountains, low coastal mountains, and the broad, fertile central valley.
Valence shell electron pair repulsion (VSEPR) theory is a model used, in chemistry, to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms.SEPR theory therefore views repulsion by the lone pair to be greater than the repulsion by a bonding pair. As such, when a molecule has 2 interactions with different degrees of repulsion, VSEPR theory predicts the structure where lone pairs occupy positions that allow them to experience less repulsion.
LONG-TERM POTENTIATION. Long-term potentiation (LTP) is a process in which synapses are strengthened. It has been the subject of much research, because of its likely role in several types of memory. LTP is the opposite of long-term depression (LTD). In LTP, after intense stimulation of the presynaptic neuron, the amplitude of the post-synaptic neuronâs response increases. The stimulus applied is generally of short duration (less than 1 second) but high frequency (over 100 Hz).