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Therefore, electrophoresis of positively charged particles or molecules is sometimes called cataphoresis, while electrophoresis of negatively charged particles or molecules (anions) is sometimes called anaphoresis.
In linguistics, anaphora (/ ə ˈ n æ f ər ə /) is the use of an expression whose interpretation depends upon another expression in context (its antecedent).In a narrower sense, anaphora is the use of an expression that depends specifically upon an antecedent expression and thus is contrasted with cataphora, which is the use of an expression that depends upon a postcedent expression.
On each individual plant, all flowers share the same morph. The flower morphs differ in the lengths of the pistil and stamens , and these traits are not continuous. The morph phenotype is genetically linked to genes responsible for a unique system of self-incompatibility , termed heteromorphic self-incompatibility , that is, the pollen from a ...
The physiological unity of plants and animals: a lecture delivered before the Sunday Lecture Society, on Sunday afternoon, 30th January, 1881 by Boulger, G.S. Items portrayed in this file depicts
Mimosa pudica in normal and touched state.. In biology, thigmonasty or seismonasty is the nastic (non-directional) response of a plant or fungus to touch or vibration. [1] [2] Conspicuous examples of thigmonasty include many species in the leguminous subfamily Mimosoideae, active carnivorous plants such as Dionaea and a wide range of pollination mechanisms.
The plants belonging to this clade are characterized by being herbaceous, with hermaphrodite, zygomorphic flowers—that is, they admit only one plane of symmetry—that are pollinated by insects. In addition, the stamens are arranged in a circle and the petals of the corona are joined together forming a tube.
Raunkiær's life-form scheme has subsequently been revised and modified by various authors, [6] [7] [8] but the main structure has survived. Raunkiær's life-form system may be useful in researching the transformations of biotas and the genesis of some groups of phytophagous animals.
The plant roots mediate this process by secreting things that will capture the metal in the rhizosphere and then transport the metal over the cell wall. Some examples are: phytosiderophores, organic acids , or carboxylates [ 4 ] If the metal is chelated at this point, then the plant does not need to chelate it later and the chelater serves as a ...