Verbascum thapsus (; Great Mullein or Common Mullein) is a species of mullein native to Europe , northern Africa and Asia , and introduced in the Americas and Australia .
It is a hairy biennial plant that can grow to 2 m or more tall. Its small yellow flowers are dens more
Action potential . B. Actual recordings of action potentials are often distorted compared to the schematic view because of variations in electrophysiological techniques used to make the recording
An action potential is a "spike" of positive and negative ionic discharge that travels along the membr more
Trade and use of saffron
(大阪府), Kansai , Honshū , Japan .
Saffron has been used as a seasoning , fragrance , dye , and medicine for more than 3,000 years.. The world's most expensive spice by weight, saffron consists of stigmas plucked from the saffron crocus (Crocus sativus). The resulting more
The Sun () is the star at the center of the Solar System . It is a medium size star. The Earth and other matter (including other planet s, asteroid s, meteoroid s, comet s and dust ) orbit the Sun, which by itself accounts for about 99.8% of the solar system 's mass . Energy from the Sun, more
Helicobacter pylori () is a Gram-negative , microaerophilic , and acidophilic bacterium that infects various areas of the stomach and duodenum . Many cases of peptic ulcer s, gastritis , duodenitis , and perhaps some cancer s are caused by H. pylori infections. However, man more