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Genetic Variability. What does the first born inherit from mom and what from dad? and the second born is a whole new mixture of mom & dad (this occurs during "cross-over") This is what leaves some siblings being weaker and others being stronger. And since "only the fittest survive", natural selection chooses the best and allows the weakest to die, improving the new "gene-pool" overall!
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∙ 12y ago
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How is genetic diversity important to the concept of natural selection?
Without genetic diversity, natural selection cannot occur
Why would natural selection not occur in this poplutation?
What population? Perhaps you mean if there were no variation for natural selection to select from.
What is the third step in natural selection?
There are really no steps in natural selection - just conditions required for it to occur.
Why would natural selection not occur in population?
It has not reached carrying Capacity
What characteristic within populations cause natural selection to occur?
Genetic variation. If there were no variation in the genes/phenotype then natural selection would have nothing to select from.
How is genetic diversity important to the concept of natural selection?
Without genetic diversity, natural selection cannot occur
Can natural selection occur without variation in a population?
no there is no genetic variation for natural selection to act upon
Does natural selection occur in the world today?
Yes, natural selection is always occurring.
Why must a population have a genetic variation in order for natural selection to occur?
Without variation there is nothing to select from.
Why would natural selection not occur in this poplutation?
What population? Perhaps you mean if there were no variation for natural selection to select from.
What is the third step in natural selection?
There are really no steps in natural selection - just conditions required for it to occur.
Why would natural selection not occur without genetic variations on species?
Without variation it would not be selecting, just random death of identical units.
what causes natural selection to occur?
the presence of predators
Can natural selection occur in an individual organism?
No, its a group thing.
What requires natural selection to occur in a population?
genetic variation
What term is defined as natural change that occur in communities over time?
Natural selection
Why are variations in a species needed for natural selection to occur?
What would be selected if organisms did not have differences that lead to better survival and reproduction, or the opposite. That is all natural selection is.
