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- Sex (2995 bytes)
5: ...s, but this terminology is quickly complicated by variations in the degree of sexuality. As with animals, th...
10: ...ting some considerable variation. One interesting variation is in the [[platypus]], a rather unusual mammal i... - Earth (30908 bytes)
7: ...th''' or '''Terra''', is the third planet outward from the [[Sun]]. It is the largest of the [[solar s...
14: ...f approximately 12,742 km. The maximum deviations from this are the highest point on Earth (the summit...
55: ... is only 1/20,000 as great as the energy received from the Sun.
74: ...utaway-english.png|thumb|350px|left|Earth cutaway from core to exosphere. Partially to scale.]]
86: ...Peridotite|harzburgite]]s which has been observed from deep parts of the oceanic crust that have been ... - Volcano (27295 bytes)
4: The name "volcano" has its origin from the name of [[Vulcan (god)|Vulcan]], a god of f...
18: ...'[[Volcanic cones]]''' or [[cinder cone]]s result from eruptions that throw out mostly small pieces of...
41: ...tive" volcano. The lifespan of a volcano can vary from months to several million years, making such a ...
43: ...to note that the span of recorded history differs from region to region; in the [[Mediterranean]], rec...
47: ...tone as extinct. In fact, because the caldera has frequent earthquakes, a very active geothermal syste... - Europe (23835 bytes)
6: ...the third largest continent after [[Asia]] and [[Africa]]. The population of Europe is roughly 705,500...
13: ...which means "sunrise" and is the land to the east from a [[Mesopotamian]] perspective.
18: ...g large colonial empires with vast holdings in [[Africa]], [[the Americas]], and [[Asia]].
20: ...to power and set out on a conquest, forming a new French empire that soon collapsed. After these conqu...
22: ...Economic Consequences|aftermath of World War I]]. From the end of [[World War II]] through the end of ... - South Africa (40100 bytes)
1: ...pendent [[nation]], entirely surrounded by South African territory.
3: ...as well as many white, coloured and Indian South Africans.
5: ...the entire [[Africa]]n continent, with modern [[infrastructure]] common throughout the country.
7: {{South Africa infobox}}
9: South Africa has 11 official languages: [[Afrikaans]], [[English language|English]], [[Zulu lan... - Brazil (12581 bytes)
1: ...]], [[Venezuela]], [[Guyana]], [[Suriname]] and [[French Guiana]] — every South American nation ...
8: ...ial ports to England — at the time isolated from most European ports by Napoleon — and the...
17: ...ado Federal'' of 81 seats, of which three members from each state or federal district are elected acco...
38: [[Image:Br-map.png|framed|Map of Brazil]]
41: ...cated; the [[Rio Negro]], [[Rio S㯠Francisco|S㯠Francisco]], [[Xingu River|Xingu]], [[Madeira river|... - Koala (10686 bytes)
20: ...t part of the bear family. The word "koala" comes from an [[aboriginal]] word meaning "does not drink"...
22: ...re found all along the eastern coast of Australia from near [[Adelaide]] to the base of the [[Cape Yor...
26: ...ales]] as ''P. cinereus cinereus''. The variation from one form to another is continuous, and there ar...
30: ...hildren]] delight in imitating) that can be heard from almost a [[kilometre]] away during the breeding...
35: ...nlarged to extract the maximum amount of nutrient from the poor quality diet. Much of this is done thr... - Iron Age (8996 bytes)
1: [[image:Axe of iron from Swedish Iron Age, found at Gotland, Sweden.jpg|...
5: ...nding on the country or geographical region. This variation even occurs within Europe where the Iron Age dist...
10: ...[smelting|smelted]] iron objects (distinguishable from meteoric iron by the lack of nickel in the prod...
12: == The Iron Age in Africa and India ==
13: ...[East Africa]] ([http://www.wsu.edu:8080/~dee/CIVAFRCA/IRONAGE.HTM ''Washington State University'']) w... - Barge (1987 bytes)
11: *[[Liquid cargo barge]] (fresh water, finished petroleum products)
20: ...r being associated with it at all costs. A common variation is to say, "I wouldn't touch that with a ''(inser... - Hapy (2473 bytes)
5: ... at the southern edge of egypt (it actually comes from two lakes, one of which is [[Lake Victoria]]).
9: ...tured carrying offerings of food or pouring water from an [[amphora]], but was also depicted very rare...
12: :''Lightmaker who comes from the dark''
17: ... drink unceasingly, as thou descendest on thy way from the heavens''. - Animal (16429 bytes)
51: ... which ''animalia'' is the plural, and ultimately from ''anima'', meaning vital breath or soul.
57: ...During development it forms a relatively flexible framework upon which cells can move about and be reo...
63: ...produced without mating, or in some cases through fragmentation.
70: ...few small parasitic [[protist]]s. The name comes from the posterior location of the [[flagellum]] in ...
72: ...ssible they are not really animals at all. Aside from them, most animal phyla with known phyla make a... - Spider (29039 bytes)
11: ...er [[Mesothelae]]'''<br /> <!-- Families missing from this list: Microstigmatidae, Nemesiidae, Barych...
79: ... [[Liphistiidae]], rarely seen burrowing spiders from Asia. The study of spiders is known as [[arachn...
81: ... strong [[protein]] strand extruded by the spider from [[spinneret]]s on the end of the abdomen. All ...
106: ...age (Foelix, 1996). A spider does not transition from the nymph to the imago until it has become sexu...
114: ...s 'palpi'), the small, leg-like appendages on the front of his [[cephalothorax]], into the sperm, abso... - Influenza (10335 bytes)
4: ..., killing many millions of people. The name comes from the old medical belief in unfavourable [[astrol...
16: Yet further variation exists, thus specific influenza strain isolates a...
21: ...c]] (type A influenza, H1N1 strain), which lasted from [[1918]] to [[1919]] and is believed to have ki...
23: ...sequent to the 1968 infection. Increased immunity from [[antibody|antibodies]] and the development of ...
26: ...ratory system|respiratory tract]], is transmitted from person to person by saliva droplets expelled by... - Sun (20830 bytes)
10: ! align="left" | Mean distance from<br>Earth
21: ! align="left" | Mean distance from<br>[[Milky Way]] core
55: ! align="left" | [[Escape velocity]]<br> from the surface
122: ...onally referred to as '''Sol''' to distinguish it from other "suns". Planet [[Earth]] [[orbit]]s the ...
128: ...istance of about 25,000 to 28,000 [[light-year]]s from the [[galactic centre]], completing one revolut... - Climate (3049 bytes)
6: ...ord, it is harder to give a precise contradiction-free definition of climate: over a 30 year period, a...
30: * [[Solar variation]]. - Meteorology (19082 bytes)
10: ...' goes back to the book ''Meteorologica'' (dating from about [[340 BC]]) by [[Aristotle]], who combine...
14: ...Franklin]]'s kite experiments with [[lightning]]. Franklin was also the first American to keep accurat...
18: ...d]]. These were solved when [[Luke Howard]] and [[Francis Beaufort]] introduced their systems for clas...
20: ...]], introducing the idea of [[front (meteorology)|front]]s, that is, sharply defined boundaries betwee...
26: ...sable tool for studying a wide range of phenomena from forest fires to [[El Ni. - Flower (10503 bytes)
3: .... After fertilization, a flower develops into a [[fruit]] containing the seed(s).
6: ...he torus. The four main parts or whorls (starting from the base of the flower or lowest node and worki...
10: *'''''androecium''''' (from Greek ''andros oikia'': man's house) – on...
11: ...ecomes the pathway for '''pollen tubes''' to grow from pollen grains adhering to the stigma, to the ov...
13: ...lant species show a wide variety of modifications from this plan. These modifications have significan... - Tree (23723 bytes)
20: ...e tree, and used to date cores or even wood taken from trees in the past; this practice is known as th...
22: ...biomass and absorbing [[water]] and [[nutrients]] from the [[soil]]. Above ground, the trunk gives hei...
30: ...ly disregarded as unreliable, fantasy or outright fraud. The following are now accepted as the top fiv...
41: ...l. Some past exaggerated measurements also result from measuring the complete next-to-bark measurement...
45: ...y soft wood in their trunks. This leads to marked variation in their girth over the year, swelling to a maxim... - Animals (10378 bytes)
2: ...acteristics that define them and distinguish them from other life forms. Animals are divided into vari...
8: ... respond to their environment. This system ranges from simple nerve nets in cnidarians (jellyfish, for...
10: ...exual reproduction involves the fusion of gametes from two individuals, leading to genetic diversity.
11: ...ack cell walls, a feature that distinguishes them from plants and fungi. They have a more flexible cel...
18: ...During development it forms a relatively flexible framework upon which cells can move about and be reo... - Human (48024 bytes)
24: Humans have an erect body carriage that frees the upper limbs for manipulating objects, a hi...
30: ... [[state]]s down to [[Family|families]], and also from the [[community]] to the [[self]]. Seeking to [...
54: ...species of [[chimpanzee]]s should be reclassified from ''[[Pan troglodytes]]'' and ''[[Pan paniscus]]'...
56: ...had]] and seems to indicate an earlier divergence from the ape lineage.
58: ... genome is significantly affected by assimilation from archaic humans (i.e., 80% of loci may have some...
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