Varicose veins seen in the superficial veins of the legs are unsightly and are often treated by surgical removal. however, even without these veins being present, the return of all blood toward the heart from the legs is not diminished. this is primarily because varicose veins seen in the superficial veins of the legs are unsightly and are often treated by surgical removal. however, even without these veins being present, the return of all blood toward the heart from the legs is not diminished. this is primarily because the precapillary sphincters will contract to prevent blood from flowing toward areas where veins have been removed blood can still return via the deep veins in the absence of the venous valves (that have been removed), the blood will backflow into the capillary beds and then flow into other venules all of the listed responses are correct.

yes it is   dangerous

explanation:

because that foot is discusting and could get you sick

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.

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