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Is directional selection considered a random change?
Directional Selection is a more extreme form of the trait is favored. Ex. Flamingoes with longer legs and necks. Punctuated Equilibrium is sudden changes, then long periods without change- may be a combination of both.
Is industrial melanism is stabilizing selection?
No, that would be more of a directional selection. Phenotypic change from a minor variant phenotype, black in this case, to the majority phenotype due to the environmental selection pressure of pollution on the moth phenotype.
The process by which individuals that are better adapted to their environment are more likely to survive and reproduce is called?
natural selection
What process in which organisims with traits well suited to an environment are more likely to survive and to produce offspring is?
natural selection
What are the pressures of natural selection?
Everything from available food to climate will cause the changes we see in natural selection. Random mutations occur constantly and when those mutations are beneficial for life, the genetic code is more likely to be passed on to future generations.
What is the directional properties of antenna?
omni-directional is the opposite of directional. A directional antenna receives or sends more signal from or to the front than the sides or back.
When organisms carry genes that make them more likely to survive to reproduce the process called what occurs?
natural selection
What is the process by which organisms with favorable genes are more likely to survive and reproduce?
natural selection
How are organisms with certain traits more likely to survive and produce offspring?
Natural selection
What is the 3 types of natural selection?
Stabilizing Selection-- The extremes are selected against.Example: height; mostly beings tend to the average height- not too many really short ones or really tall ones.Directional selection-- One extreme value is selected for.Example: speed; faster is always better so a population will tend to get faster over time.Disruptive selection-- The extremes are both selected for.This type of selection is not as common as the first two. Example: Prey-type animal with distinctive markings which the predators know will over time move away from the norm in both directions.
Can Stress cause Vasodilation?
Stress is far more likely to cause vasorestriction
What is the process which individuals that are better adapted to their environment are more likely to survive and reproduce is called?
natural selection
