Centimetre

• Introduction As a year 10 students, I was asked to do a Personal Project which consisted of choosing a subject, preferably that we had a certain interest in, to assure that all would be satisfied of the work accomplished during the month of the personal project. As the project is something that you have to like and have an interest in, the choice was very difficult to make because it would be something that you would work a lot on. During the vacation before school started again, I had several…

As a rule, the gill area is greater in fast-moving crabs (Portunids) than in sluggish bottom dwellers; decreases progressively from wholly aquatic, to intertidal, to land species; and is greater in young crabs than in older crabs. Often the gills are enclosed in protective chambers, and ventilation is provided by specialized appendages that create the respiratory current. As in cephalopod mollusks, oxygen utilization is relatively high—up to 70 percent of the oxygen is extracted from the water…

Contents [hide] * 1 Etymology and related terminology * 2 Taxonomy * 3 History and evolution * 3.1 DNA studies * 4 Roles with humans * 4.1 Early roles * 4.2 As pets * 4.3 Work * 4.4 Sports and shows * 4.5 As a food source * 4.6 Health risks to humans * 4.7 Health benefits for humans * 4.8 Shelters * 5 Biology * 5.1 Senses * 5.1.1 Vision * 5.1.2 Hearing…

He turned a little sideways in his chair to drink his mug of coffee. At the table on his left the man with the strident voice was still talking remorselessly away. A young woman who was perhaps his secretary, and who was sitting with her back to Winston, was listening to him and seemed to be eagerly agreeing with everything that he said. From time to time Winston caught some such remark as 'I think you're so right, I do so agree with you', uttered in a youthful and rather silly feminine voice.…