what is the difference between density dependent factors and density independent factors?
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Density-dependent regulation can be affected by factors that affect birth and death rates such as competition and predation. Density-independent regulation can be affected by factors that affect birth and death rates such as abiotic factors and environmental factors, i.e. severe weather and conditions such as fire.
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Measuring or comparing However, they are not identical measures. Density is defined as mass per unit volume. ... Specific gravity is the ratio of a material's density with that of water at 4 °C (where it is most dense and is taken to have the value 999.974 kg m-3).
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Density is the only thing affecting whether something floats or sinks. If an object has a higher density than the fluid it is in (fluid can mean liquid or gas), it will sink. If it has a lower density, it will float. Density is determined by an object's mass and volume.
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In simpler words, density = number of molecules x molecular weight/volume occupied, while the viscosity is a measurement of the inter-molecular forces and molecule shapes. Viscosity tells you the “friction” between two layers of the given fluid, while density varies slightly with temperature, viscosity changes rapidly.
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Density-independent limiting factors affect all populations in similar ways, regardless of population size and density. Unusual weather such as hurricanes, droughts, or floods, and natural disasters such as wildfires, can act as density-independent limiting factors.
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In nature, population size and growth are limited by many factors. Some are density-dependent, while others are density-independent. Density-dependent limiting factors cause a population's per capita growth rate to change—typically, to drop—with increasing population density.
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density is one factor affecting upthrust (buoyant force). if the density of the substance is more than the density of the fluid, then the upthrust will be less and thus the substance sink. if the density of the substance is less than the density of the fluid, then the upthrust will be more and thus the substance float.
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Explain the difference between a density-dependent limiting factor and a density-independent factor. Density-independent limiting factors affect populations no matter what their size is; density-dependent ones affect the population only when the number of organisms reach a certain level.
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The main difference between dependent and independent data marts is that the dependent data marts get data from an already created data warehouse while the independent data marts get data directly from an operational source and/or external source.
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Density and mass are compleatly different. They are related as. Mass is the matter which is filled up in a body, whereas density determines what mass is filled in the body per unit volume. ... Mass is the matter which is filled up in a body, whereas density determines what mass is filled in the body per unit volume.
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If an object's weight is greater than the buoyant force acting on it, then the object sinks. A given volume of a denser substance is heavier than the same volume of a less dense substance. Therefore, density of an object also affects whether it sinks or floats.
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The first property is the lack of a dependence on pressure or density. Intuition suggests that gas viscosity should increase with increasing density, inasmuch as liquids are much more viscous than gases, but gas viscosity is actually independent of density.
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Density dependent limiting factors are related to living organisms while density-independent limiting factors are related to the environment.
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Density-independent factor. ... Density-independent factor, also called limiting factor, in ecology, any force that affects the size of a population of living things regardless of the density of the population (the number of individuals per unit area).
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The density of an object determines whether it will float or sink in another substance. An object will float if it is less dense than the liquid it is placed in. An object will sink if it is more dense than the liquid it is placed in.
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Less Dense, More Dense If something is heavy for its size, it has a high density. If an object is light for its size it has a low density. A pebble is heavy for its size, compared to a piece of popcorn which is light for it's size.
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Buoyancy is independent of the gravity it is in because buoyancy is determined by the relative densities of the material being buoyed and the the fluid that is being displaced. The common name for the density related to buoyancy is specific gravity. ... Object can float in fluids other than water.