Chelicerata

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    Introduction The diversity of arthropods extends beyond the location factor alone as multiple influences such as humidity levels, atmospheric content and other environmental conditions contribute to their widespread assortment. Gaps in diversity indices do not only occur amongst insect populations residing at regionally distinct locations as these influences are also reflected in arthropod communities over small distances. Climatic conditions often lead to insect migrations and extinctions which allows the level of diversity of insects in communities to reflect variations in climatic conditions in different regions (Reich et al. 2014). As results for several studies indicate, the diversity rates of arthropods face variations based on ecological disturbances along with the regional changes in species pools (Hawksworth 2007). Distinctive species and subspecies of arthropods thrive in varying environments as the preferences of each insect type are not identical. Extreme temperature levels, light intensities and atmospheric content as a result of pollution may prove to be deadly for most insect populations, while some species of extremophile insects are able to withstand such harsh conditions without any difficulty. Therefore, current changes in the temperature levels resulting from global warming could determine the changes in the distribution of insects over different regions (Whittaker 2001). Mitchell (2014) states that agricultural landscapes do not remain constant as their…

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    According to Volz (2008) the Atlantic horseshoe crab has a of pair compound eyes that sit amongst its head. These are its lateral eyes; they are used to help the Atlantic horseshoe crab find a mating partner. The Limulus polyphemus is the only animal from the subphylum chelicerata with these compound eyes. The Atlantic horseshoe crab has an additional five eyes located on top of its shell. The first two are the median eyes. The median eyes have the ability to see ultraviolet light and…

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    Eurypterid Research Paper

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    ing Lama Sherpa GEO 206-01 RESEARCH PROJECT EURYPTERIDS ABSTRACT 1.INTRODUCTION ‚Ä®Eurypterids are a large extinct group of arthropods that ranged from 10 cm to 2 m in length. They belonged to the extinct order Eurypterida of the phylum Arthropoda, Subphylum Chelicerata and class Merostomata. According to the fossil record, the first Eurypterids were present in the mid-Ordovician and they thrived in warm shallow water until the late Permian when they went extinct. Thus, they lived for…

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    Questions On Bottled Water

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    of time between the purchase date and the date of receiving a refund check? a. 2 weeks + 4 weeks + 1 week b. 30 days + 4 weeks + 1 week c. 2 weeks + 6 weeks + 1 week d. 30 days + 6 weeks + 1 week 48. A refund for this purchase could be denied if the customer a. failed to circle the model and serial numbers on the sale receipt. b. used the product exclusively for 3 weeks c. does not normally use a post office box. d. did not include the guarantee statement when returning product. 1.…

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