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- Gastrointestinal tract (16596 bytes)
13: *[[Mouth]] (buccal cavity; includes [[salivary glands]], [[mucosa]], [[tooth|teeth]]...
16: *[[Stomach]], which includes the [[antrum]] and [[pylorus]]
19: ***'''[[duodenum]]'''
27: ****[[descending colon]] and [[sigmoid flexure]]
33: ...bile]] into the small intestine via the [[gallbladder]] and [[biliary system]]. The [[pancreas]] secr... - Anus (740 bytes)
1: ...ion of the anus. Most animals — from simple worms to elephants and humans — have a tubular gu...
3: ... involuntary. In many animals, the anus is surrounded by [[anal sacs]]. - Silk (8683 bytes)
1: ...orm4.jpg|right|thumb|250px|Silk Worms. Image provided by [http://classroomclipart.com Classroom Clipar...
5: ...silk was one of the staples of international [[trade]] prior to [[industrialization]].
7: ==Silk trade==
8: ...s trade was so extensive that the major set of trade routes between Europe and Asia has become known a...
11: ...macy, as gifts to foreign dignitaries. The remainder was sold at exorbitant prices. - Animal (16429 bytes)
17: Superphylum [[Deuterostome|Deuterostomia]]<br>
19: [[Hemichordata]] (acorn worms)<br>
20: [[Echinoderm]]ata<br>
21: [[Chaetognatha]] (arrow worms)<br>
26: [[Nematoda]] (roundworms)<br> - Deuterostome (1974 bytes)
1: {{Taxobox_begin | color = pink | name = Deuterostomes}}
6: {{Taxobox superphylum entry | taxon = '''Deuterostomia'''}}
9: * [[Echinodermata]]
14: ...tinguished by their [[embryonic development]]; in deuterostomes, the first opening (the [[blastopore]]...
16: There are three phyla of deuterostomes: - Pope Adrian III (859 bytes)
1: ...], on a journey to [[Worms, Germany|Worms]], in modern [[Germany]].
3: ...ractically unknown, but he was noted for having aided the Romans during a famine. His cult was confir...
6: Predecessor=[[Pope Marinus I|Marinus I]]| - Protestant Reformation (26890 bytes)
1: ...uther]] and his [[95 Theses]]. The reformation ended in division and the establishment of new institu...
4: ... Anti-hierarchical movements: [[Cathar]]ism, [[Waldensian]]ism, and others
11: * ''[[Exsurge Domine]]'', [[Diet of Worms]] ([[1521]]), [[Peasants' War]]
18: === Underlying Demographic and Economic Factors ===
20: ...rring in conjunction with economic, political and demographic forces that contributed to a growing dis... - Annelid (7780 bytes)
11: [[Acanthobdellida]]<br>
12: [[Branchiobdellida]]<br>
17: ...small>*Some authors consider the subclasses<br/>under Clitellata to be classes</small>
19: ...itic or mutualistic. They range in length from under a millimetre to over 3 metres.
23: ...]], and a system of longitudinal muscles. In earthworms, the longitudinal muscles are strengthened by col... - Arthropod (9248 bytes)
2: {{Taxobox_image | image = [[Image:spider_crab_at_hydrocarbon_sink.Gulf_of_Mexico.NOAA.jpg...
11: **[[Arachnida]] - [[Spider]]s, [[Scorpion]]s, etc.
13: **[[Pycnogonida]] - [[Sea Spider]]s
15: **[[Chilopoda]] - [[Centipede]]s
16: **[[Diplopoda]] - [[Millipede]]s - Ocean (6829 bytes)
6: ...unique in being defined only by a line of [[latitude]] with no landmass boundaries.
12: ... Ocean through the [[Strait of Gibraltar]], and indeed several times over the last few million years m...
14: ...d its average depth is 3790 m. This does not include seas not connected to the World Ocean, such as th...
18: See [[sea water]] for a detailed discussion of ocean water composition, most...
22: ... gravity map.gif|right|thumb|350px|Map of large underwater features. (1995, [[NOAA]])]] - Allergy (18658 bytes)
1: ...eatening [[anaphylaxis|anaphylactic shock]] and [[death]].
4: ...w four-class (now five) classification scheme was designed by P. G. H. Gell and R. R. A. Coombs. Aller...
12: ...eczema]], [[hives]] ([[urticaria]]) and [[contact dermatitis]].
14: ..., [[edema]], [[hypotension]], [[coma]] and even [[death]].
23: ... minutes. This response will range from slight reddening of the skin to full-blown [[hives]] in extrem... - Sea nettle (4594 bytes)
15: ...re rated from moderate to severe but do not cause death. The sting is used to kill or stun both [[prey...
21: ...will fertilize the [[Ovum|egg]]s that she has inside.
23: ...he water, forming [[polyp]]s. The polyps then divide and bud into young jellyfish (ephyra). In a few w...
32: ==Defense Mechanisms==
33: ...als and predators. Nettles use their tentacles as defense mechanisms against large predators and to ca... - Silkworm (3141 bytes)
17: ...ns its [[cocoon]] from raw silk. The cocoon is made of a single continuous thread of raw silk from 30...
19: Silkworms have a good appetite. They eat mulberry leaves da...
20: ...re thrown into boiling water, which kills the silkworms and also makes the cocoons easier to unravel. The...
21: ...worms at a silk factory in Thailand. Picture provided by [http://classroomclipart.com Classroom Clip A...
22: ...us|genome]] has been the object of considerable modern study. - Mongoose (2463 bytes)
16: ...ooses into the [[United States]]. Mongooses are widespread in [[Hawaii]], and have had a significant i...
18: ...young mongoose defending his human family from murderous [[cobra_(snake)|cobra]]s. - Germanic tribes (16394 bytes)
3: ...allis]], [[Walloon]], and [[Wallachia]] have been derived.
5: ...ed free, led by their own hereditary or chosen leaders.
10: ...egarding the question of ethnic origins, evidence developed by both archaeologists and linguists sugge...
12: ...ural features at that time included small, independent settlements and an economy strongly based on th...
14: ...(2-3 degrees warmer than today) deteriorated considerably, which not only dramatically changed the flo... - Piranha (4128 bytes)
20: ...subfamily]] of [[Serrasalminae]] (which also includes closely related herbivorous fish including [[pac...
24: ...ssessed nouns take the prefix 't-', 's-', or 'r-' depending on the possessor, or zero in combination; ...
29: ...ve the same sensory system that enables sharks to detect blood in miniscule amounts, so it is not beli... - Aztec (38742 bytes)
3: ... islets in [[Lake Texcoco]] – the site of modern-day [[Mexico City]].
7: ...ith the historical Aztec civilization, not with modern-day Nahuatl speakers.
9: .... Their use of the word ''Azteca'' was like the modern use of ''Latino'', or ''Mediterranean'': a broa...
11: ... that after leaving Aztlan, [[Huitzilopochtli]] ordered his people not to use the word Azteca, instead...
14: ...xica" is increasingly applied. The Museo Nacional de Antropologia e Historia, for example, refers to t... - Aztec mythology (10599 bytes)
3: *[[Acolmiztli]] - a god of the underworld, [[Mictlan]]
4: ...nahuacatl'' (see [[Acolmiztli]]) - a god of the underworld, [[Mictlan]]
8: *[[Atlacamani]] - goddess of oceanic storms such as hurricanes
9: *[[Atlacoya]] - goddess of drought
10: *[[Atlatonan]] (also ''Atlatonin'') - goddess of the coast - Worm (1491 bytes)
1: ...ousands of different [[species]] that live in a wide variety of habitats other than [[soil]].
3: ...everal different animal groups. Major phyla include:
5: * [[Acanthocephala]] (spiny-headed worms)
6: * [[Annelida]] (segmented worms)
7: * [[Chaetognatha]] (arrow worms) - Platypus (21900 bytes)
14: ...semi-[[aquatic]] [[mammal]] [[endemic (ecology)|endemic]] to the eastern part of [[Australia]], and on...
15: The platypus is considered one of the strangest [[specimen]]s of the anim...
22: ...al pound|pound]]s) and over two kilograms (just under four and one half pounds); with body length rang...
23: ...platypus.jpg|thumb|250px|left|Platypus Image provided by [http://classroomclipart.com Classroom Clip A...
24: ... with legs that are on the sides of rather than underneath the body.
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