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- Grapefruit (4275 bytes)
31: ...erial agent: II. Mechanism of action and in vitro toxicity.'' [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi... - Carnivorous plant (44834 bytes)
1: [[image:Darlingtonia_californica.jpg|thumb|200px|right|''[[Darlingtonia]]'': note the smal...
41: ...y known as trumpet pitchers. ''S. purpurea'' (the huntman's cup) has a more cosmopolitan distribution.
66: [[image:Brocchinea.jpg|thumb|200px|left|''[[Brocchinia]]'': a carnivorous br...
134: ...the lobes (which are held under tension) to snap shut. This whole process takes less than
136: ... leaf's having a simple memory: for the lobes to shut, two [[stimulus|stimuli]] are - Allergy (18658 bytes)
60: ...vity reaction against an allergen to the normal [[humoral response]] against a foreign body is that [[...
80: ...use we know what they are, in contrast to earlier humans who would think that it is a non-important il...
85: Many common allergies such as asthma have seen huge increases in the years since the second world w...
90: ...onments with little or no testing regarding their toxicity to living beings. Many believe that air quality i...
98: [[Image:Misc pollen.jpg|thumb|250px|right|[[Scanning electron microscope|SEM]... - Extinction (15793 bytes)
2: ...ough some species survive virtually unchanged for hundreds of millions of years.
8: ...tions can be attributed directly or indirectly to human effects. [[Endangered species]] are species t...
15: In addition to actual extinction, human attempts to preserve critically endangered spe...
35: ...irect effects, such as the environment becoming [[toxicity|toxic]], or indirectly, by limiting a species' ab...
37: ...nning the [[egg]] shell walls of affected birds, thus lowering the survivability of offspring. Since ... - Mushroom (6650 bytes)
1: [[Image:Group-of-mushroom.jpg|thumb|450px]]
6: [[Image:Dried mushrooms.jpg|thumb|250px|right|Mushrooms are often dried in order ...
7: ...e [[morel]] and [[truffle]] being good examples. Thus, the term ''mushroom'' is more one of common app...
9: ...t of collecting them as such is called [[mushroom hunting]] — an activity with a potentially dea...
12: [[Image:Mushroom_immatures.jpg|thumb|left|300px|These emerging mushrooms<br>are too ... - Alchemy (42222 bytes)
2: ...e ability to do both. The third goal was creating human life. Alchemy can be regarded as the precursor...
4: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
8: ..., "pour together", "weld", "alloy", etc. (from ''khumatos'', "that which is poured out, an ingot"). An...
11: ...ble, relying instead on [[rule of thumb|rules of thumb]], traditions, basic observations, and mysticis...
17: Thus, the naïve interpretations of some alchemis... - Optic nerve (5184 bytes)
1: ...jpg|thumb|Color Cross Section Illustration of the Human Eye courtesy of [http://classroomclipart.com c...
22: ... Hereditary Optic Neuropathy]], glaucoma, trauma, toxicity, inflammation, ischemia, infection (very rarely),... - Vitamin (5982 bytes)
1: ...ly health-furthering, but not strictly essential. Humans require 13 different vitamins.
9: ..., [[fat]]s, etc.—that were necessary to the human body. When [[Kazimierz Funk]] isolated the ch...
13: == Human vitamins ==
112: ... vitamins may be stored in the body and can cause toxicity when taken in excess. Water-soluble vitamins are...
116: ..., are needed by the body in large quantities and thus do not fit the definition of vitamins which are ... - Boron (9084 bytes)
45: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
47: ...tances in an attempt to quench boron's insatiable hunger for electrons.
61: ...ttractive in this regard because they possess low toxicity.
73: ... element was not isolated until [[1808]] by Sir [[Humphry Davy]], [[Joseph Louis Gay-Lussac]], and [[L... - Cadmium (10755 bytes)
166: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
193: [[Image:CadmiumMetalUSGOV.jpg|thumb|left|Cadmium metal]]
202: ...s and [[ecosystem]]s. One possible reason for its toxicity is that it interferes with the action of [[zinc]]...
206: ...ins cadmium, should be handled with care. Serious toxicity problems have resulted from long-term exposure to... - Cerium (12377 bytes)
170: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
226: ...h metals, is of low to moderate <font color="red">toxicity</font>. Cerium is a strong reducing agent and ign... - Cobalt (13481 bytes)
100: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
133: [[image:bristol.blue.glass.arp.750pix.jpg|thumb|left|250px|Cobalt blue glass]]
145: ...sential to many living [[organism]]s, including [[humans]]. Having 0.13 to 0.30 mg/kg of cobalt in soi...
148: [[Image:Cobalt OreUSGOV.jpg|thumb|Cobalt ore]]
160: ...hould be handled with care due to cobalt's slight toxicity. - Copper (13595 bytes)
134: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
142: [[Image:Copper Ingot Crete.jpg|left|thumb|175px|Ancient Copper [[ingot]] from Zakros, Cre...
159: === Toxicity ===
160: ...ed safe level of copper in [[drinking water]] for humans varies depending on the source, but tends to ...
176: [[Image:CopperMineralUSGOV.jpg|thumb|Copper in a mineral]] - Dysprosium (8843 bytes)
158: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
198: ...e of low to moderate [[toxicity]], although their toxicity has not been investigated in detail. Dysprosium d... - Erbium (9509 bytes)
5: ...er" | [[holmium]] – '''erbium''' – [[thulium]]
158: | <sup>169</sup>[[Thulium|Tm]]
183: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
203: ...and the primary products after are element 69 ([[thulium]]) isotopes.
206: ...e of low to moderate [[toxicity]], although their toxicity has not been investigated in detail. - Europium (8579 bytes)
149: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
197: The toxicity of europium compounds has not been fully investig... - Gadolinium (9860 bytes)
157: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
168: ...adolinium is also used as a secondary, emergency shut-down measure in some nuclear reactors, particula...
209: ...e of low to moderate [[toxicity]], although their toxicity has not been investigated in detail. - Germanium (8776 bytes)
163: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
168: [[Image:GermaniumUSGOV.jpg|thumb|left|Germanium bowl]]
208: Certain compounds of germanium have low toxicity to [[mammal]]s, but have toxic effects against ce... - Helium (36603 bytes)
107: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
122: ...chanics]] is needed to explain this property and thus both types of liquid helium are called ''quantum...
134: ...nce, a million times that of helium I and several hundred times that of [[copper]]. This is because he...
146: ...blood]] and collects in [[joint]]s), and [[oxygen toxicity]] at high pressures. Higher pressures require a g...
196: ...lect in certain areas when conditions are right. Thus the greatest concentrations (trace amounts up to... - Indium (8657 bytes)
134: [[Image:Chemistry_flask.jpg|thumb|150px|left|Chemistry Clipart .Clipart provided ...
152: [[Image:IndiumMetalUSGOV.jpg|thumb|left|Indium metal]]
159: ...sources are more definite about indium compounds' toxicity - for example, the [http://www.webelements.com/ W...
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