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Many of the known plant defense compounds primarily defend against consumption by insects, though other animals, including humans, that consume such plants may also experience negative effects, ranging from mild discomfort to death. Many of these poisonous compounds also have important medicinal benefits. [3]
The lack of oxygen-producing plants will cause oxygen in the atmosphere to disappear as well as the ozone layer, making animal life impossible. Even if photosynthesis were still possible, rising surface temperatures from the brighter sun will make complex life (plants and animals) impossible. [209] [210] 1–5 billion Various
Greys have been the predominant extraterrestrial beings of alleged alien contact since the 1960s. [5] Hopkinsville goblin [6] [7] [8] Small, greenish-silver humanoids. [9] Little green men [10] Diminutive green humanoids. Even though a few abductions have referred to green skin, no report has ever involved anything that would fit the classic ...
Red, white and blue baby names are a way to show your patriotism this 4th of July, and always! Consider options like Scarlett, Pearl and Lapis. 61 red, white and blue-inspired baby names for your ...
Chromatophores are cells that produce color, of which many types are pigment -containing cells, or groups of cells, found in a wide range of animals including amphibians, fish, reptiles, crustaceans and cephalopods. Mammals and birds, in contrast, have a class of cells called melanocytes for coloration . Chromatophores are largely responsible ...
Chromostereopsis is a visual illusion whereby the impression of depth is conveyed in two-dimensional color images, usually of red–blue or red–green colors, but can also be perceived with red–grey or blue–grey images. [1] [2] Such illusions have been reported for over a century and have generally been attributed to some form of chromatic ...
In a painting where different parts of the composition are blue, green and red, the blue will appear to be more distant, and the red closer to the viewer. The cooler a colour is, the more distant it seems. [35] Blue light is scattered more than other wavelengths by the gases in the atmosphere, hence our "blue planet".
RYB (an abbreviation of red–yellow–blue) is a subtractive color model used in art and applied design in which red, yellow, and blue pigments are considered primary colors. [1] Under traditional color theory, this set of primary colors was advocated by Moses Harris, Michel Eugène Chevreul, Johannes Itten and Josef Albers, and applied by ...