In order for a gene to be transcribed or read , what needs to happen ? ( 1point )
a. the promoter region of a gene is bound to its specific binding protein
b. the enhancer region of a gene is bound to its specific binding protein
c. the transcriber region of a gene is bound to its specific binding protein
d. a mutation occur in the gene

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation