Kamis, 15 Maret 2012

Afika di Hitam Putih trans 7

Posted by resty at 00.16 0 comments
 




afika cantik bangeeeeeeeeeeeet

Rabu, 14 Maret 2012

Jumlah Penduduk Dunia 2011

Posted by resty at 23.27 0 comments
Jumlah penduduk dunia (update jam 15.47 UTC 02 Agustus 2011) menurut IDB (International Data Base) Biro Sensus Amerika Serikat adalah : 6,952,939,682 jiwa.
Sepuluh besar negara dengan jumlah penduduk terbesar adalah :
1China1,336,718,015
2India1,189,172,906
3United States311,050,977
4Indonesia245,613,043
5Brazil203,429,773
6Pakistan187,342,721
7Nigeria165,822,569
8Bangladesh158,570,535
9Russia138,739,892
10Japan127,469,543
Daftar selengkapnya negara / wilayah dan jumlah penduduk diurutkan dari yang terbanyak adalah :
RankingNegara/WilayahPopulasi
1China1,336,718,015
2India1,189,172,906
3United States311,050,977
4Indonesia245,613,043
5Brazil203,429,773
6Pakistan187,342,721
7Nigeria165,822,569
8Bangladesh158,570,535
9Russia138,739,892
10Japan127,469,543
11Mexico113,724,226
12Philippines101,833,938
13Ethiopia90,873,739
14Vietnam90,549,390
15Egypt82,079,636
16Germany81,471,834
17Turkey78,785,548
18Iran77,891,220
19Congo (Kinshasa)71,712,867
20Thailand66,720,153
21France65,102,719
22United Kingdom62,698,362
23Italy61,016,804
24Burma53,999,804
25South Africa49,004,031
26Korea, South48,754,657
27Spain46,754,784
28Ukraine45,134,707
29Sudan45,047,502
30Colombia44,725,543
31Tanzania42,746,620
32Kenya41,943,504
33Argentina41,769,726
34Poland38,441,588
35Algeria34,994,937
36Uganda34,612,250
37Canada34,030,589
38Morocco31,968,361
39Iraq30,399,572
40Afghanistan29,757,566
41Nepal29,391,883
42Peru29,248,943
43Malaysia28,728,607
44Uzbekistan28,128,600
45Venezuela27,635,743
46Saudi Arabia26,131,703
47Ghana24,791,073
48Korea, North24,457,492
49Yemen24,133,492
50Taiwan23,071,779
51Mozambique22,948,858
52Syria22,517,750
53Madagascar21,926,221
54Romania21,904,551
55Australia21,766,711
56Cote d’Ivoire21,504,162
57Sri Lanka21,283,913
58Cameroon19,711,291
59Angola17,544,728
60Kazakhstan17,304,513
61Chile16,888,760
62Burkina Faso16,751,455
63Netherlands16,653,734
64Niger16,468,886
65Malawi15,879,252
66Ecuador15,007,343
67Cambodia14,701,717
68Mali14,159,904
69Zambia13,881,336
70Guatemala13,824,463
71Senegal12,643,799
72Zimbabwe12,084,304
73Rwanda11,370,425
74Cuba11,087,330
75Portugal10,760,305
76Greece10,760,136
77Chad10,758,945
78Tunisia10,629,186
79Guinea10,601,009
80Belgium10,431,477
81Burundi10,216,190
82Czech Republic10,190,213
83Bolivia10,118,683
84Hungary9,976,062
85Dominican Republic9,956,648
86Somalia9,925,640
87Haiti9,719,932
88Belarus9,577,552
89Azerbaijan9,397,279
90Benin9,325,032
91Sweden9,088,728
92Austria8,217,280
93Honduras8,143,564
94Switzerland7,639,961
95Tajikistan7,627,200
96Israel7,473,052
97Serbia7,310,555
98Hong Kong7,122,508
99Bulgaria7,093,635
100Togo6,771,993
101Libya6,597,960
102Jordan6,508,271
103Laos6,477,211
104Paraguay6,459,058
105Papua New Guinea6,187,591
106El Salvador6,071,774
107Eritrea5,939,484
108Nicaragua5,666,301
109Kyrgyzstan5,587,443
110Denmark5,529,888
111Slovakia5,477,038
112Sierra Leone5,363,669
113Finland5,259,250
114Singapore5,246,787
115United Arab Emirates5,148,664
116Turkmenistan4,997,503
117Central African Republic4,950,027
118Norway4,691,849
119Ireland4,670,976
120Bosnia and Herzegovina4,622,163
121Georgia4,585,874
122Costa Rica4,576,562
123Croatia4,483,804
124New Zealand4,290,347
125Congo (Brazzaville)4,243,929
126Lebanon4,143,101
127Puerto Rico3,989,133
128Liberia3,786,764
129Moldova3,694,121
130Lithuania3,535,547
131Panama3,460,462
132Uruguay3,308,535
133Mauritania3,281,634
134Mongolia3,133,318
135Oman3,027,959
136Albania2,994,667
137Armenia2,967,975
138Jamaica2,868,380
139Kuwait2,595,628
140West Bank2,568,555
141Latvia2,204,708
142Namibia2,147,585
143Macedonia2,077,328
144Botswana2,065,398
145Slovenia2,000,092
146Lesotho1,924,886
147Qatar1,849,257
148Kosovo1,825,632
149Gambia, The1,797,860
150Gaza Strip1,657,155
151Guinea-Bissau1,596,677
152Gabon1,576,665
153Swaziland1,370,424
154Mauritius1,303,717
155Estonia1,282,963
156Trinidad and Tobago1,227,505
157Bahrain1,214,705
158Timor-Leste1,177,834
159Cyprus1,120,489
160Fiji883,125
161Djibouti757,074
162Guyana744,768
163Comoros721,886
164Bhutan708,427
165Equatorial Guinea668,225
166Montenegro661,807
167Macau573,003
168Solomon Islands571,890
169Suriname553,159
170Cape Verde516,100
171Western Sahara507,160
172Luxembourg503,302
173Malta408,333
174Brunei401,890
175Maldives394,999
176Belize321,115
177Bahamas, The313,312
178Iceland311,058
179Barbados286,705
180French Polynesia271,687
181New Caledonia256,275
182Vanuatu224,564
183Mayotte209,530
184Samoa193,161
185Guam183,286
186Sao Tome and Principe179,506
187Saint Lucia161,557
188Curacao144,688
189Virgin Islands, U.S.109,666
190Grenada108,419
191Micronesia, Federated States of106,836
192Aruba106,113
193Tonga105,916
194Saint Vincent and the Grenadines103,869
195Kiribati100,743
196Jersey94,161
197Seychelles89,188
198Antigua and Barbuda87,884
199Andorra84,825
200Isle of Man84,655
201Dominica72,969
202Bermuda68,679
203American Samoa67,242
204Marshall Islands67,182
205Guernsey65,068
206Greenland57,670
207Cayman Islands51,384
208Saint Kitts and Nevis50,314
209Faroe Islands49,267
210Northern Mariana Islands46,050
211Turks and Caicos Islands44,819
212Sint Maarten38,486
213Liechtenstein36,422
214San Marino31,817
215Saint Martin30,615
216Monaco30,539
217Virgin Islands, British30,391
218Gibraltar28,956
219Palau20,956
220Wallis and Futuna15,398
221Anguilla15,094
222Cook Islands11,124
223Tuvalu10,544
224Nauru9,322
225Saint Helena7,700
226Saint Barthelemy7,367
227Saint Pierre and Miquelon5,888
228Montserrat5,140
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Selasa, 13 Maret 2012

Siklus Hidup Aurelia aurita

Posted by resty at 02.51 0 comments

Description & Behavior

Moon jellyfishes, Aurelia aurita (Linnaeus, 1758), aka saucer jellies, moon jellies and common sea jellies, range between 5-40 externalcm in diameter. They can be recognized by their delicate and exquisite coloration, often in patterns of spots and streaks. Their behavior depends on a number of external conditions, in particular, food supply. Aurelia swim by pulsations of the bell-shaped upper part of the animal. Swimming mostly functions to keep the animal near the surface of the water rather than to make progress through the water. They swim horizontally, keeping the bell near the surface at all times. This allows the tentacles to be spread over the largest possible area, in order to better catch food. The coronal muscle allows the animal to pulsate in order to move. Impulses to contract are sent by way of the subumbrellar nerve net and are nervous in origin. The moon jelly has rhopalial centers, which allow it to control the pulsations. As the oxygen rate in the water goes down, so too does the respiratory rate of the jellyfish.

World Range & Habitat

Atlantic Ocean, Pacific Ocean, Indian Ocean: Aurelia aurita are found near the coast, in mostly warm and tropical waters (but they can withstand temperatures as low as -6 external°C and as high as 31 external°C). They are prevalent in both inshore seas and oceans. Their habitat includes the coastal waters of all zones and they occur in huge numbers. They are known to live in brackish waters with as low a salt content as 0.6%. Decreased salinity in the water diminishes the bell curvature and vice versa. An optimum temperature for the animals is 9-19 external°C. Biomes: reef, tropical coastal, freshwater lake.

Feeding Behavior (Ecology)

The moon jelly is carnivorous and feeds on zooplankton. Their primary foods include small plankton organisms such as mollusks, crustaceans, tunicate larvae, copepods, rotifers, nematodes, young polychaetes, protozoans, diatoms and eggs. They have also been observed eating small hydromedusae and ctenophores external. These foods collect chiefly on the surface of the animal, where they become entangled in mucus. Food items are then passed on to the margins by flagellar action, where they collect on the lappets. They are then moved, again by flagellar currents, along eight separate canals, which are unique to this species of jellyfish. These canals branch off and run into the stomach.

Life History

Sexual maturity in Aurelia aurita commonly occurs in the spring and summer. Their eggs develop in gonads located in pockets formed by the frills of the oral arms. Their gonads are commonly the most recognizable part of the animal, because of their deep and conspicuous coloration. Their gonads lie near the bottom of the stomach. Males and females are distinct and reproduction is sexual.
 

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