Eton Centris was originally being developed by Paramount Land Equities, another Lucio Tan-controlled company. In 2009, Eton Properties purchased the Centris development from Paramount in exchange for 1.6 billion newly issued Eton Properties shares. The shares were issued at ₱2.50 each, a premium of ₱0.17 over the volume-weighted average trading price of the shares in the past three months.[5]
The Centris 610 uses a 20 MHz 68LC040 CPU, which has no math coprocessor functions. It used a new "pizza box" case that was intended to be placed under the user's computer monitor. This case was later used again in the Quadra 610 and Power Macintosh 6100 lines of computers and, when these later computers were introduced, Apple offered consumers a product upgrade path by letting them buy a new motherboard. Apple's motherboard upgrades of this type were considered expensive, however, and were not a popular option. The Centris 610 also provided the base for the Workgroup Server 60.
Male C. pallida are able detect the pheromones which females release and use them to locate female burrows. When a virgin female is about to emerge from her burrow, she releases a scent that wafts up through the soil and is detected by the antenna of the males. This has led to males developing a very acute olfactory sense. Freshly-killed females have been buried to test whether sound also plays a part in male signaling. In these tests, male bees still dug up the dead females, proving that pheromone signaling is the only pathway. Males have also been observed to dig up other males. This shows that males and virgin females give off similar pheromones. Oddly, males also sometimes dig up other digger bee species. It is currently unknown why this occurs.[6]
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