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It is a form of mimicry in plants where a weed comes to share one or more characteristics with a domesticated plant through generations of unintentional selection. Selection against the weed may occur by killing a young or adult weed, separating its seeds from those of the crop ( winnowing ), or both.
The exact correspondence in the length of the style of each form with that of one set of stamens in the other form insures that the pollen attached to any part of the body of an insect shall be applied to a style of the same length on another plant, and there is thus a triple chance of the maximum of fertility....There is thus the clearest ...
Apophasis (/ ə ˈ p ɒ f ə s ɪ s /; from Ancient Greek ἀπόφασις (apóphasis), from ἀπόφημι (apóphemi) 'to say no') [1] [2] is a rhetorical device wherein the speaker or writer brings up a subject by either denying it, or denying that it should be brought up. [3]
There are three physiological developments that must occur in order for this to take place: firstly, the plant must pass from sexual immaturity into a sexually mature state (i.e. a transition towards flowering); secondly, the transformation of the apical meristem's function from a vegetative meristem into a floral meristem or inflorescence; and ...
Plant intelligence is a field of plant biology which aims to understand how plants process the information they obtain from their environment. [ 2 ] [ 3 ] Plant intelligence has been defined as "any type of intentional and flexible behavior that is beneficial and enables the organism to achieve its goal".
Brains of an emu, a kiwi, a barn owl, and a pigeon, with visual processing areas labelled. The avian brain is the central organ of the nervous system in birds. Birds possess large, complex brains, which process, integrate, and coordinate information received from the environment and make decisions on how to respond with the rest of the body.
A foxglove with a peloric flower. (Digitalis purpurea 'monstrosa')A peloric foxglove (Digitalis purpurea) flowerPelorism is the term, said to be first used by Charles Darwin, for the formation of 'peloric flowers' [1] which botanically is the abnormal production of radially symmetrical (actinomorphic) flowers in a species that usually produces bilaterally symmetrical (zygomorphic) flowers. [2]
It is a striking ornamental plant native to South America, mainly Argentina and Uruguay. [1] It is naturalized in Texas , and fairly common in the rest of the southwestern United States, [ 1 ] where it is known as bird of paradise bush , desert bird of paradise , yellow bird of paradise , and barba de chivo .