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  1. Rio de Janeiro (14538 bytes)
    1: ...ut the city called Rio de Janeiro. For the state with the same name, see [[Rio de Janeiro (state)]].''
    5: ...aneiro_LE2002059_lrg.jpg|thumb|250px|A NASA satellite image of Rio de Janeiro]]
    7: ...arly [[Brazilian Carnival|Carnival]] celebration. It also has the biggest forest inside an urban regio...
    9: ...ntry's capital until 1960, when [[Bras�a]] took its place.
    13: ...ra was actually the mouth of a river, they called it "Rio de Janeiro", which means January River.
  2. Reproduction (2286 bytes)
    5: ...e produced by the fusion of haploid gametes. Then it forms a diploid zygote.
    6: ...have different sexes, and they are capable of "splitting" themselves into two or more parts and regrow...
    10: ...he need to reproduce; on the other hand, animals with many offspring do not need to spend parental ene...
  3. Actinium (7046 bytes)
    1: <!-- Here is a table of data; skip past it to edit the text. -->
    25: | [[Density]], [[Mohs hardness scale|Hardness]]
    56: ...Kelvin|K]] (1050 ?[[Celsius|C]] / 1922 ?[[Fahrenheit|F]])
    65: | [[Heat of fusion]] || 62 kJ/mol
    69: | [[Velocity of sound]]
  4. Bone (11388 bytes)
    1: ...e]]s) facilitate [[movement]]; are also involved with [[cell formation]], [[calcium metabolism]], and ...
    3: ...ives to bones are [[animal shell|shell]]s and [[chitin]].
    6: ...efly [[collagen]]). Bone is a [[mesh]], the [[density]] of which may vary at different [[points]].
    9: ...cellous bone is trabecular (honeycomb structure), it has a relatively high surface area, but forms a s...
    11: ... during growth or repair. It is so called because its fibres are aligned at random, and as a result ha...
  5. Skull (7027 bytes)
    8: ... by sutures, rigid articulations permitting very little movement.
    10: ... as part of the skull, as it does not articulate with any other bones.
    13: ... supporting the brain (the [[occipital bone|occipital]], [[sphenoid bone|sphenoid]], [[temporal bone|...
    16: The bones of the roof of the skull are initially separated by regions of dense [[connective t...
    17: ...t the junction of the frontal and parietal bones; it is a "soft spot" on a baby's forehead. Careful ob...
  6. Tooth (14790 bytes)
    9: ...[[tooth enamel|enamel]], that helps to prevent cavities on the teeth.
    11: ...lopment in a species is called the species' [[dentition]]. [[Dentistry|Dentists]] sometimes refer to ...
    29: ...d since meat is easy to digest, they can swallow without the need for molars to chew the food well.
    35: ... This stage is known as [[teething]] and can be quite painful for an infant. Human children have 20 mi...
    42: ...mplete prevention of decay may require treatment with [[dental sealants]].
  7. Flowering plant (29088 bytes)
    16: ...tically by botanical writers, but with varying limitation, as a group-name for other dicotyledonous pl...
    18: ... which the term is nowadays received and in which it is used here.
    22: ...restrial herbs, creeping, erect or climbing in habit, shrubs and trees, and representing a much greate...
    24: ...he great angiosperm radiation, when a great diversity of angiosperms appear in the fossil record, occu...
    29: ...the number of [[cotyledon]]s or embryonic leaves within the seeds, but there are a number of other dif...
  8. Greek language (35285 bytes)
    3: ...eece]], [[Cyprus]], south [[Albania]], [[Southern Italy]], south [[Republic of Macedonia|Former Yuglos...
    13: ...]] with a documented history of some 3,000 years. It is symbolically divided in four historical period...
    15: ...sation. It has been studied in schools and universities in many countries from the [[Renaissance]] onw...
    17: ...estament Greek''' (after its most famous word of literature).
    21: ...as 11th century). Today in its '''common''' form, it is spoken by approximately 15 million speakers wo...
  9. Martin Van Buren (21629 bytes)
    14: <tr><td>'''[[First Lady of the United States|First Lady]]:'''</td><td>[[Angelica Van ...
    17: ...e United States|Political Party]]:'''</td><td>[[United States Democratic Party|Democrat]]</td></tr>
    18: <tr><td>'''[[Vice President of the United States|Vice President]]:'''</td><td>[[Richard M...
    22: ...first President born after the signing of the [[United States Declaration of Independence|Declaration ...
    25: ...th of [[Albany, New York|Albany]], the [[state capital]]. His great-great-great-grandfather Cornelis h...
  10. Tanzania (17411 bytes)
    1: ...wi]] and [[Mozambique]] on the south. To the east it borders the [[Indian Ocean]].<!--
    11: ... = Uhuru na Umoja ([[Swahili]]: Freedom and Unity) |
    15: capital = [[Dodoma]] ([[Dar es Salaam]...
    18: leader_titles = [[List of Presidents of Tanzania|...
    20: largest_city = [[Dar-es-Salaam]] |
  11. Timeline of invention (28171 bytes)
    3: ...ntion into a practical form. Where there is ambiguity, the date of the first practical, fielded versio...
    5: ===[[Paleolithic|Paleolithic Era]]===
    36: * 3500 BC: [[Cuneiform script|Writing]] in [[Sumer]]
    62: ...century BC|400s BC]]: [[Catapult]] in [[Syracuse, Italy|Syracuse]]
    99: ...eglasses]] in [[Italy in the Middle Ages|Northern Italy]]
  12. Alexander the Great (42049 bytes)
    2: ...|thumb|right|[[Bust]] of Alexander III in the [[British Museum]].]]
    4: ...he Cursed''' due to his burning of the Persian capital and national library.
    6: ...pears as a towering legendary [[hero]] in the tradition of [[Achilles]].
    9: ...ve Alexander a thorough training in rhetoric and literature and stimulated his interest in science, me...
    11: After his visit to the [[Oracle]] of Ammon at Siwah, according to...
  13. Sun (20830 bytes)
    13: ! align="left" | [[Apparent magnitude|Visual brightness]] (''V'')
    16: ! align="left" | [[Absolute magnitude]]
    19: ...or="#ffffc0" colspan="2" align="center" | '''[[Orbit]]al characteristics'''
    27: ! align="left" | Velocity
    48: ! align="left" | Density
  14. List of themed timelines (11300 bytes)
    10: ** [[Timeline of artificial satellites and space probes]]
    13: ** [[Timeline of astronauts by nationality]]
    22: ** [[Timeline of natural satellites]]
    29: ** [[Timeline of white dwarfs, neutron stars, and supernovae]]
    48: ** [[Timeline of algorithms]]
  15. Government (12596 bytes)
    1: ...ons on what exactly constitutes a government. In its broadest sense, "govern" means the power to admi...
    3: ==Definitions==
    5: ...spotic]] organization which controls a territory without defining laws would not be considered a gover...
    7: ...ing the establishment of alternative governments within the country.
    9: ...h in Canada|Canadian French]] also generally uses it to mean the executive branch. The [[German langua...
  16. List of inventors (14020 bytes)
    15: *[[Joseph Aspdin]], British inventor of cement in 1824
    22: ... - (1938-) U.S. solar inventor and developer; architectural designer.
    28: ...Emile Berliner]], (1851-1929) [[Germany]] and [[United States|USA]] &mdash; [[gramophone]]
    31: *[[Bi Sheng]] &mdash; primitive movable [[printing]] types
    40: ...her von Braun]], (1912-1977), [[Germany]] and [[United States|USA]] &mdash; [[rocket]] technology
  17. Animals (10378 bytes)
    1: ....jpg|400px|thumb|right|photo representing great white shark]]
    2: ...iving organisms. While they exhibit immense diversity in form and function, they share a set of common...
    7: *Heterotrophic Nutrition: Unlike plants, animals cannot synthesize thei...
    9: ...during certain life stages. This movement is facilitated by specialized organs like muscles and, in ma...
    10: ...es from two individuals, leading to genetic diversity.
  18. Eukaryote (9230 bytes)
    17: ...tes''' (also spelled "eucaryotes") are organisms with complex [[cell (biology)|cell]]s, in which the g...
    19: ... some process of [[sexual reproduction]] via cell fusion, which is not found among prokaryotes.
    25: ...vaginates and then pinches off to form a vesicle. It is probable that most other membrane-bound organe...
    27: ...] or ER, which is involved in protein transport. It includes rough sections where [[ribosome]]s are a...
    29: ...y a central vacuole or tonoplast, which maintains its osmotic pressure.
  19. Religion (72319 bytes)
    1: ...In the course of the [[development of religion]], it has taken a huge number of forms in various cultu...
    2: ...e religion, often taking the form of a [[legal entity]] (see [[religion-supporting organization]]).
    4: [[Image:Borobudur-perfect-buddha edited.jpg|300px|thumb|right|[[Borobudur]], a [[Buddhi...
    10: ...ing attributed by [[Cicero]] to describe the repetition of scripture. The second interpretation, favo...
    15: Beyond the above, very broad definition of religion, there are a variety of uses and m...
  20. Thymus (6028 bytes)
    5: ...hich surrounds the follicle, the other lies just within the margin of the medulla, click image for mor...
    8: ...pment of the [[immune system]] in early life, and its cells form a part of the body's normal immune sy...
    13: ...e passed into the bloodstream where they perform vital immune functions. Others remain in the thymus t...
    16: ..., at puberty it weighs about 35 grams; after this it gradually decreases to 25 grams at twenty-five ye...
    19: ...e original diverticula and their subdivisions. Additional portions of thymus tissue are sometimes deve...

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