Which scenario would be found in a tension zone of a Cline?
Selection and migration are both very high in magnitude. Which scenario would be found in a tension zone of a cline? Selection is weak but the cline is maintained by low dispersal rates. Natural selection eliminates heterozygotes, preventing introgression deep into the other side of the cline.
In which situation will Gene swamping prevent local adaptation?
When there is a patch of habitat that selects for a different allele than that favored outside the patch, the locally adapted allele will be lost by gene swamping if the size of the patch is smaller than a critical size determined by the relative strengths of migration and selection.
What is most likely to increase rates of gene flow for a benthic bottom dwelling marine invertebrate?
What is most likely to increase rates of gene flow for a benthic (bottom dwelling) marine invertebrate? = 60%, and there are 12,000 birds on the island. On the nearest continental mainland, the same species is monomorphic for allele A1.
Which condition is most likely to account for a difference between the census population size and the effective population size?
Inbreeding
What is the symbol for density?
rho
What is this symbol η?
Eta (uppercase Η, lowercase η) is the seventh letter of the Greek alphabet. In the Greek numeral system, this letter presents the number eight. The Greeks took the Phoenician letter heth (or ḥēt) as the foundation for their letter Eta. The uppercase letter eta (Η) is used as a symbol of enthalpy in Chemistry.
What is this symbol φ?
Phi
What does P mean in density?
The density of an ideal gas is. where M is the molar mass, P is the pressure, R is the universal gas constant, and T is the absolute temperature. This means that the density of an ideal gas can be doubled by doubling the pressure, or by halving the absolute temperature.
Why is density represented by P?
Originally Answered: How did Ρ (Greek rho ρ) evolve from being pronounced as /r/to become pronounced as /p/ in the Latin alphabet? It didn’t. Greek Pi (Π) evolved into Latin P, and Greek Rho (Ρ) evolved into Latin R.
What material has the highest density?
element osmium
How does density change with pressure?
Pressure and Density Relationship When pressure increases, density increases. When the pressure decreases, density decreases.
Does pressure depend on density?
Pressure within a liquid depends only on the density of the liquid, the acceleration due to gravity, and the depth within the liquid. The pressure exerted by such a static liquid increases linearly with increasing depth.
Does the density of water change with pressure?
The density does increase with depth, but only to a tiny extent. If you’re dealing with these sorts of depths you also need to take temperature into account because the water temperature changes with depth and the density also changes with temperature.
Can a fluid’s density change?
There is no difference between the density of the fluid in the flow and in a static condition. Density is the property of the fluids. If the fluid is compressible, it can change its density which depends on the pressure, temperature, etc.
What matter that has constant density?
If the density is constant throughout a substance, the substance is said to be a homogeneous substance. A solid iron bar is an example of a homogeneous substance. The density is constant throughout, and the density of any sample of the substance is the same as its average density.
How much does density change with temperature?
Density increase as the temperature decreases. Below 4 deg C, however, the density decreases again.
How does the density of liquids vary with temperature?
The density of water can also be affected by temperature. The warmer the water, the more space it takes up, and the lower its density. When comparing two samples of water with the same salinity, or mass, the water sample with the higher temperature will have a greater volume, and it will therefore be less dense.
How is density affected when the depth increases?
As you go deeper in depth, pressure increases. Density = mass/volume. The layers beneath us due to pressure get packed to the point of being very dense.
How does temperature affect density of gas?
When a liquid or gas is heated, the molecules move faster, bump into each other, and spread apart. Because the molecules are spread apart, they take up more space. They are less dense. Therefore temperature can affect density.
What decreases the density of a gas?
Since the mass of the gas is also kept constant, the only way to change its density is to change the volume it occupies. What that tells you is that increasing the pressure of the gas will cause its volume to decrease. Likewise, decreasing the pressure of the gas will cause its volume to increase.
Does the density of a solid change with temperature?
When a substance is heated its volume increases and so the density decreases. In solids, increase in volume is negligible and hence decrease in density too. In liquids and gases, as the temperature increases, volume increases and therefore density decreases considerably.
What is the using of density?
Density measurement is used to specify and describe a pure substance, but also determines concentrations of binary mixtures and therefore gives information about the composition of mixtures. It is, for example, useful during quality control or helps determine the filling volume during the bottling of a product.
Where is density used in real life?
Everyday Density Examples In an oil spill in the ocean, the oil rises to the top because it is less dense than water, creating an oil slick on the surface of the ocean. A Styrofoam cup is less dense than a ceramic cup, so the Styrofoam cup will float in water and the ceramic cup will sink.
How is density important to life?
Density is important when working out if something will float in water, and it can also be useful for calculating the mass of a specific volume of a substance.