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Dimorphous Emotional Expression
Dimorphism or dimorphic may refer to: Science * Dimorphic root systems, plant roots with two distinctive forms for two separate functions * Sexual dimorphism, a phenotypic difference between males and females of the same species * Nuclear dimorphism, when a cell's nuclear apparatus is composed of two structurally and functionally differentiated types of nuclei * Frond dimorphism, differing forms of fern fronds between the sterile and fertile fronds * Phenotypic dimorphism, switching between two cell-types ** Dimorphic fungi, fungi which undergo this type of switching * Dimorphism (geology), the property of some substances to exist in two distinct crystalline forms Mathematics * Semilinear map In linear algebra, particularly projective geometry, a semilinear map between vector spaces ''V'' and ''W'' over a field ''K'' is a function that is a linear map "up to a twist", hence ''semi''-linear, where "twist" means " field automorphism of ''K ..., a homomorphism between modules, pair ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dimorphic Root System
A dimorphic root system is a plant root system with two distinct root forms, which are adapted to perform different functions. One of the most common manifestations is in plants with both a taproot, which grows straight down to the water table, from which it obtains water for the plant; and a system of lateral roots Lateral roots, emerging from the pericycle (meristematic tissue), extend horizontally from the primary root (radicle) and over time makeup the iconic branching pattern of root systems. They contribute to anchoring the plant securely into the soil ..., which obtain nutrients from superficial soil layers near the surface. Many plants with dimorphic root systems adapt to the levels of rainfall in the surrounding area, growing many surface roots when there is heavy rainfall, and relying on a taproot when rain is scarce. Because of their adaptability to water levels in the surrounding area, most plants with dimorphic root systems live in arid climates with common wet and dr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Dimorphism
Sexual dimorphism is the condition where sexes of the same species exhibit different Morphology (biology), morphological characteristics, including characteristics not directly involved in reproduction. The condition occurs in most dioecy, dioecious species, which consist of most animals and some plants. Differences may include secondary sex characteristics, size, weight, color, markings, or behavioral or cognitive traits. Male-male reproductive competition has evolved a diverse array of sexually dimorphic traits. Aggressive utility traits such as "battle" teeth and blunt heads reinforced as battering rams are used as weapons in aggressive interactions between rivals. Passive displays such as ornamental feathering or song-calling have also evolved mainly through sexual selection. These differences may be subtle or exaggerated and may be subjected to sexual selection and natural selection. The opposite of dimorphism is ''monomorphism'', when both biological sexes are phenotype, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
