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There must be genetic variation in the population

The system must not be in hardy-weinberg equilibrium.

resources must be limited in the ecosystem

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What is true for natural slection to happen?

Resources must be limited in the ecosystem.


Which is more likely to be true natural selection or evolution?

Evolution, of course. Evolution can happen without natural selection in some cases; drift, flow. Generally though, natural selection causes evolution and then, by definition, would come first.


What is true about nature selection?

Natural selection usually causes a species to change gradually


Is it true that natural selection helps explain how new species develop?

Yes, it is true.


True or false natural selection does not always result in an increase in genetic diversity?

true


Is this true Natural selection cannot operate efficiently against rare recessive alleles?

True


In natural selection human decide which change is favorable or not true or false?

.


What must be true for natura selection to happen?

For natural selection to occur, there must be variation in traits within a population, as these variations can affect an organism's ability to survive and reproduce. Additionally, the traits must be heritable, meaning they can be passed down to the next generation. There must also be differential survival and reproduction, where individuals with advantageous traits are more likely to survive and reproduce than those without. Lastly, the environment must exert pressure that favors certain traits over others.


What must happen to pollen grains in order for pollination to occur?

True pollen comes from artichokes in which farts come from natural gas.


Is it true that through natural selection harmful variations gradually accumulate in a species?

yes


Is it true natural selection can act upon an individuals genotype the external of genes?

False


What must be true for hardy equilibrium to occur?

mating must happen randomly