As these changes have occurred, organisms have evolved, and remnants of some have been preserved as fossils.A fossil can be studied to determine what kind of organism it represents, how the organism lived, and how it was preserved.Or use it to create really cool photo slideshows - with 2D and 3D transitions, animation, and your choice of music - that you can share with your Facebook friends or Google circles. For a small fee you can get the industry's best online privacy or publicly promote your presentations and slide shows with top rankings. We'll even convert your presentations and slide shows into the universal Flash format with all their original multimedia glory, including animation, 2D and 3D transition effects, embedded music or other audio, or even video embedded in slides. Most of the presentations and slideshows on Power are free to view, many are even free to download.(You can choose whether to allow people to download your original Power Point presentations and photo slideshows for a fee or free or not at all.) Check out Power today - for FREE. - Are you a Power Point presenter looking to impress your audience with professional layouts? With over 30,000 presentation design templates to choose from, Crystal Graphics offers more professionally-designed s and templates with stylish backgrounds and designer layouts than anyone else in the world. That’s why our impressive Templates for Power Point product line won the Standing Ovation Award for “Best Power Point Templates” from Presentations Magazine. - Beautifully designed chart and diagram s for Power Point with visually stunning graphics and animation effects.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.2214C Age of Sea Water 23Radiocarbon Variation Over the Last 2000 years 24Calibration Curve Showing Departure 25Calibrated Curve 26Radiocarbon Plateaus 2714C Bomb Spike 28Potassium Argon Dating (40K/40Ar) Power is a leading presentation/slideshow sharing website.
They indicate an age for the emu egg of 31.24 ± 0.34 ka.Understanding the ages of related fossil species helps scientists piece together the evolutionary history of a group of organisms.For example, based on the primate fossil record, scientists know that living primates evolved from fossil primates and that this evolutionary history took tens of millions of years.The initial peopling of the Americas has proved one of the most challenging episodes in reconstructing global prehistory, challenging because researchers struggle with the vagaries of early archaeological site preservation, and debates continue over the date and place of human entry, the rapidity and direction of dispersion, and the variety of cultural responses to climatic change during the terminal Pleistocene period.Despite many recent advances in our understanding of these issues, especially in the areas of genetics and new archaeological discoveries, the field continues facing limitations in the sampling and quality of data, the research problems defined, and the epistemologies and theories applied.