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What five conditions control that rate at which evolution occurs?
Generation time, mutation rate, asexual vs sexual reproduction, strength of selective pressures, population size
Does migration help with reproduction with the narwhal?
Yes. It provides new breeding stock. More variation in the genes, which increases their offsprings survival rate.
How were neurospora spores treated to increase the mutation rate?
They were (and still can be) shot with X-rays. This heightens mutation rate is Neurospora spores.
What tax rate increases as the tax base increases?
The progressive tax rate is one where the tax rate increases as the taxable rate, or income, is increasing.
How can mutation rate affect the evolution of a population?
1. The mutation rates affect the evolution of the population by two factors. Firstly, every new mutation overcomes the effects of survival. When new mutations exist in one or two individuals, they are often lost from the population due to genetic drift, or change. For example, the mutation may never make it to a gamete and may get lost. Secondly, the selective value of the mutation can determine its affect of the population. If it's harmful then the selection would act to reduce its frequency and eventually remove it.
Why does temperature affect the rate of osmosis?
as the temperature increases, the rate of osmosis increases
What happens to the rate of stream erosion As slope increases?
as slope increases erosion rate increases (direct relationship)
Rate Montana grizzly?
Montana grizzly are selective with an acceptance rate of about 95.4 percent.
What increases the basal metabolic rate in an individual?
Elevating your heart rate increases your basal metabolic rate in an individual.
Wolves are predators for hares The wolf population increase what happens next?
The Death Rate of hares increases.
As literacy rate increases what increases?
Standard of living
What are rates of reaction influenced by?
Temperature (rate increases with temp increase) Pressure (rate again increases with press increase) Concentration (rate increases with concentration increase) Particle size (rate increases with smaller particles) Catalyst increases rate.
