Powerpoint Presentation Physical Geology, 10/e
... epicenter) explained by refraction of waves encountering core-mantle boundary • S-wave shadow zone (≥103° from epicenter) suggests outer core is a liquid • Careful observations of P-wave refraction patterns indicate inner core is solid ...
... epicenter) explained by refraction of waves encountering core-mantle boundary • S-wave shadow zone (≥103° from epicenter) suggests outer core is a liquid • Careful observations of P-wave refraction patterns indicate inner core is solid ...
2010 Chapter 24 Arthropods
... stiff and flexible cuticle to allow movement. • The exoskeleton is made of many layers of chitin. – hard material that protects the body – must be shed in order to grow ...
... stiff and flexible cuticle to allow movement. • The exoskeleton is made of many layers of chitin. – hard material that protects the body – must be shed in order to grow ...
ARTHROPODA
... (class Arachnida; order Solifugae) It does not spin webs or have book lungs. Many rumors about the camel spiders’ speed, size and venom. In the middle east, it was said that these big, fast spiders would come into your tent at night and inject an anaesthetizing venom that would put its victims to sl ...
... (class Arachnida; order Solifugae) It does not spin webs or have book lungs. Many rumors about the camel spiders’ speed, size and venom. In the middle east, it was said that these big, fast spiders would come into your tent at night and inject an anaesthetizing venom that would put its victims to sl ...
Earthquakes
... of the Earth. As the waves propagate, the rocks are elastically deformed by change in either volume or shape. ...
... of the Earth. As the waves propagate, the rocks are elastically deformed by change in either volume or shape. ...
EARTHQUAKES.2
... vibrate back and forth perpendicular to the direction the wave is moving Slower than P waves (4-5 kms./s) TRAVEL THROUGH SOLIDS ONLY ...
... vibrate back and forth perpendicular to the direction the wave is moving Slower than P waves (4-5 kms./s) TRAVEL THROUGH SOLIDS ONLY ...
Seismic communication
Seismic communication, sometimes called vibrational communication, describes the conveying of information through seismic vibrations of the substrate. The substrate may be the earth, a plant stem or leaf, the surface of a body of water, a spider’s web, a honeycomb, or any of the myriad types of soil substrates. Seismic cues are generally conveyed by Rayleigh waves generated through vibrations on the substrate, or acoustical waves that couple with the substrate. Vibrational communication is an ancient sensory modality and it is widespread in the animal kingdom where it has evolved several times independently. It has been reported in mammals, birds, reptiles, amphibians, insects, arachnids, crustaceans and nematode worms. Vibrations and other communication channels are not necessarily mutually exclusive, but can be used in multi-modal communication.