Answer: The body makes sure that food does not get into the lungs because the epiglottis closes the air pathway so that food will not enter it.
Recessive traits often seem to disappear because two recessive alleles are needed to produce the recessive phenotype. They can skip a generation and then reappear if an individual inherits two copies of the recessive gene. Mendel's experiments revealed that phenotypes could be hidden in one generation, only to reemerge in subsequent generations.
Recessive traits disappear because recessive alleles can hide out in heterozygotes, allowing them to persist in gene pools and natural selection can only see the phenotype, not the genotype. While harmful recessive alleles will be selected against and it's almost impossible for recessive alleles to completely disappear from a gene pool.
To learn more about recessive alleles, here
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Granite would be more resistant to decomposition as compared to rhyolite because <span><span>rhyolite is a fine-grained rock and Granite is a coarse-grained rock.
</span>Granite tends to be more stable to weathering conditions. The major component of </span><span>quartz, orthoclase, muscovite and biotite are the in order of resistant to decomposition.</span>
