Oil and Gates' Microsoft may have briefly approached this kind of dominance, but the length and extent of De Beers' supremacy is unprecedented. Artificially keep diamond prices stable by matching its supply to world demand. De Beers acts like the theory of monopoly predicts: - It is almost the sole seller of diamonds (sells almost 90% of world production). - Sells a commodity with no close substitutes (created this illusion by advertising) - It restricts output and it responds to changes in market
described. Background The marine creatures commonly known as jellyfish are members of the phylum Cnidaria. Of the four classes of cnidarians, jellyfish come from both the Hydrozoa and Scyphozoa classes. Most jellyfish are schphozoids, while the Portuguese Man-of-War (Physalia physalis) is a hydroid. As cnidarians, jellyfish possess two tissue types: endoderm and ectoderm, in addition to a single cell layer of jelly-like mesoglea between the endoderm and the ectoderm (Russell 21). Jellyfish exhibit
time-Europeans explorers discovered the Americas. This altered everything the Old and New World knew. a. The Shaping of North America - Pangaea contained all the worlds’ lands some 225 million years ago. - Then it broke off to Eurasia, Australia, Americas, Africa, and Antarctica - The majestic ranges of western North America – the Rockies, the Sierra Nevada, the cascades, and the Coast Ranges – arose more recently.