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What characteristic within populations causes natral selection to occur?
Variations within populations is what natural selection is " looking " for. That one variant of a population is somewhat better able to survive and reproduce than other variants against the backdrop of the immediate environment is natural selection.
What is caused by gene flow?
When genes are exchanged due to the mixing of populations, the result is gene flow. Genetic drift, along with natural selection, mutation, and migration, is one of the basic mechanisms of evolution.
Natural selection causes the frequency of favorable alleles to?
Increase.
How does natural selection sometimes create a change in a populations?
Natural selection constantly causes change in populations by making them change over time, and occasionally split to form new species.For example, if a population stays together, but their environment starts to change, then natural selection will pick the fittest organisms of that population to live and pass their traits on to their offspring, causing a gradual change in the genetic makeup of the entire populationAnother example of natural selection on a population is speciation, or the formation of a new species. If the population is separated geographically, behaviorally, or temporally, the 2 sub groups can adapt to different climates and gradually become so different that they can't mate anymore, so they become 2 separate species.add Natural selection may be seen in action today. The emergence of herbicide resistant plants and insecticide resistant populations of insects are well documented.It must be said, that if the new threat (herbicide/insecticide) vanished, the population may well revert to the previous form. But if the new challenge remains significant, then it becomes dominant.
How does adaptation affect the evolution of a species?
It is, in fact, evolution (shifts in the frequencies of traits in populations) that causes adaptation (when these shifts lead to increased fitness).
What characteristic within populations causes natural to occur?
genetic variation
What characteristic within populations causes natral selection to occur?
Variations within populations is what natural selection is " looking " for. That one variant of a population is somewhat better able to survive and reproduce than other variants against the backdrop of the immediate environment is natural selection.
What characteristic witin populations causes natural selection to occur?
The characteristic within the population that causes natural selection to occur is that individuals within a given population are not all identical because they vary. The other characteristic that causes natural selection to occur is that some variants are better than the others.
What causes populations to complete?
Compete? The need to be a moron. Complete? The lack of natural selection.
Natural selection causes changes in populations of organisms not individual organisms because?
differential reproductive success caused by genetic variation is necessary for the process of natural selection.
In 1995 the US and Canada had a higher crude death rate than Mexico because they?
Had aging populations dying of natural causes.
What is the characteristic of bacteria?
The characteristic of bacteria would be that they are unicellular!
What causes populations to compete?
Limited resources
What causes the sea lions populations to decrease?
Global Warming
Which of the following are true of natural selection?
An organism with a charecteristic that is more helpful to its survival will be more likely to survive and breed than one without that characteristic.
Did helen keller die of natural causes?
Yes, she died of natural causes.
When was Murder by Natural Causes created?
Murder by Natural Causes was created in 1979.
