dispersion pattern

Examples of dispersion pattern in the following topics:

• Species Distribution

  • Dispersion or distribution patterns show the spatial relationship between members of a population within a habitat.
  • Individuals of a population can be distributed in one of three basic patterns: they can be more or less equally spaced apart (uniform dispersion), dispersed randomly with no predictable pattern (random dispersion), or clustered in groups (clumped dispersion) .
  • Random dispersion occurs with dandelion and other plants that have wind-dispersed seeds that germinate wherever they happen to fall in a favorable environment.
  • Clumped dispersions may also result from habitat heterogeneity.
  • In this way, the dispersion pattern of the individuals within a population provides more information about how they interact with each other and their environment than does a simple density measurement.

• Dispersion Force

  • These London dispersion forces are often found in the halogens (e.g., F2 and I2), the noble gases (e.g., Ne and Ar), and in other non-polar molecules, such as carbon dioxide and methane.
  • London dispersion forces are part of the van der Waals forces, or weak intermolecular attractions.
  • London dispersion forces allow otherwise non-polar molecules to have attractive forces.
  • What kinds of patterns tend to form with charged and neutral atoms?
  • Explore the role of size and shape in the strength of London dispersion attractions.

• Liverworts and Hornworts

  • Thus, the life cycle of liverworts follows the pattern of alternation of generations .
  • The life cycle of a typical liverwort follows the pattern of alternation of generations.
  • This sporophyte disperses spores with the help of elaters; the process begins again.
  • Both follow the pattern of alternation of generations.
  • Liverworts also disperse their spores with the help of elaters, while hornworts utilize pseudoelaters to aid in spore dispersal.

• Fruit and Seed Dispersal

  • Some fruits can disperse seeds on their own, while others require assistance from wind, water, or animals.
  • The fruit has a single purpose: seed dispersal.
  • Modifications in seed structure, composition, and size aid in dispersal.
  • Wind is used as a form of dispersal by lightweight seeds, such as those found on dandelions.
  • Summarize the ways in which fruits and seeds may be dispersed

• Diffraction Gratings: X-Ray, Grating, Reflection

  • The directions of these beams depend on the spacing of the grating and the wavelength of the light so that the grating acts as the dispersive element.
  • A photographic slide with a fine pattern of purple lines forms a complex grating.
  • This is due to viewing angle (less than the critical angle of reflection of the black vinyl) and the path of the light being reflected due to being changed by the grooves, leaving a rainbow relief pattern behind.
  • In an X-ray diffraction measurement, a crystal is mounted on a goniometer and gradually rotated while being bombarded with X-rays, producing a diffraction pattern of regularly spaced spots known as reflections (see ).
  • Each dot, called a reflection, in this diffraction pattern forms from the constructive interference of scattered X-rays passing through a crystal.

• Water’s Solvent Properties

  • This is referred to as a sphere of hydration, or a hydration shell, and serves to keep the particles separated or dispersed in the water.
  • Nonpolar molecules experience hydrophobic interactions in water: the water changes its hydrogen bonding patterns around the hydrophobic molecules to produce a cage-like structure called a clathrate.
  • This change in the hydrogen-bonding pattern of the water solvent causes the system's overall entropy to greatly decrease, as the molecules become more ordered than in liquid water.

• Team Communication

  • Communication patterns describe the flow of information within the group and can be described as centralized or decentralized.
  • Virtual teams, especially those whose members are widely dispersed, can face additional challenges such as differences in language, culture, and time zones.

• Dispersion: Rainbows and Prisims

  • Dispersion is defined as the spreading of white light into its full spectrum of wavelengths.
  • Dispersion is defined as the spreading of white light into its full spectrum of wavelengths.
  • Refraction is responsible for dispersion in rainbows and many other situations.
  • (b) White light is dispersed by the prism (shown exaggerated).
  • This light is refracted and dispersed both as it enters and as it leaves the drop.

• Angsiosperm Fruit

  • Regardless of how they are formed, fruits are an agent of seed dispersal.
  • The variety of shapes and characteristics reflect the mode of dispersal, whether it be wind, water, or animals .
  • Once eaten, tough, undigested seeds are dispersed through the herbivore's feces.
  • A fruit's distinctive shape and specialized characteristics will determine its dispersal mechanism.
  • The winged shape of Alsomitra macrocarpa's seeds allow them to use wind for dispersal.

• Regulating Virulence

  • Therefore, it was believed that less virulent pathogens that allowed the host to move around and interact with other hosts should have greater success reproducing and dispersing.
  • After only a few generations, the mutations that enhance rapid reproduction or dispersal will increase in frequency.
  • The same mutations that enhance the reproduction and dispersal of the pathogen also enhance its virulence in the host, causing much harm (disease and death).
  • Macroscopic examination of colonial growth patterns is still one of the ways microorganisms are often identified.