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2. List of poisonous plants - Wikipedia

   en.wikipedia.org/wiki/List_of_poisonous_plants

   Li lu is used internally as a powerful emetic of last resort, and topically to kill external parasites, treat tinea and scabies, and stop itching. [175] However some herbalists refuse to prescribe li lu internally, citing the extreme difficulty in preparing a safe and effective dosage, and that death has occurred at a dosage of 0.6 grams. [175]

3. Environmental protection - Wikipedia

   en.wikipedia.org/wiki/Environmental_protection

   Many of the earth's resources are especially vulnerable because they are influenced by human impacts across different countries. As a result of this, many attempts are made by countries to develop agreements that are signed by multiple governments to prevent damage or manage the impacts of human activity on natural resources.

4. Lens (vertebrate anatomy) - Wikipedia

   en.wikipedia.org/wiki/Lens_(vertebrate_anatomy)

   The lens is located towards the front part of the vertebrate eye, called the anterior segment, which includes the cornea and iris positioned in front of the lens. The lens is held in place by the suspensory ligaments (Zonule of Zinn), [1] attaching the lens at its equator to the rest of the eye [2] [3] through the ciliary body.

5. Entoptic phenomenon - Wikipedia

   en.wikipedia.org/wiki/Entoptic_phenomenon

   A phosphene is the perception of light without light actually entering the eye, for instance caused by pressure applied to the closed eyes. A phenomenon that could be entoptical if the eyelashes are considered to be part of the eye is seeing light diffracted through the eyelashes.

6. Human body - Wikipedia

   en.wikipedia.org/wiki/Human_body

   Human physiology is the study of how the human body functions. This includes the mechanical, physical, bioelectrical, and biochemical functions of humans in good health, from organs to the cells of which they are composed. The human body consists of many interacting systems of organs.

7. Leech - Wikipedia

   en.wikipedia.org/wiki/Leech

   Symptoms of these reactions include red blotches or an itchy rash over the body, swelling around the lips or eyes, a feeling of faintness or dizziness, and difficulty in breathing. [48] An externally attached leech will detach and fall off on its own accord when it is satiated on blood, which may take from twenty minutes to a few hours ...

8. Maximum life span - Wikipedia

   en.wikipedia.org/wiki/Maximum_life_span

   Maximum life span (or, for humans, maximum reported age at death) is a measure of the maximum amount of time one or more members of a population have been observed to survive between birth and death.

9. Acariasis - Wikipedia

   en.wikipedia.org/wiki/Acariasis

   Sarcoptes in humans is especially severe symptomatically, and causes the condition scabies noted above. [citation needed] Another genus of mite which causing itching but rarely causes hair loss because it burrows only at the keratin level, is Cheyletiella. Various species of this genus of mite also affect a wide variety of mammals, including ...