Dr. Horne travels 4 miles to the north to go to Tractor Supply. When he leaves, he travels 5 miles to the east to go to Dairy Queen. What is the distance traveled? What is the displacement?​

the cytokine-activated janus kinase (jak)-signal transducer and activator of transcription (stat) pathway has an important role in the control of immune responses. dysregulation of jak-stat signaling is associated with various immune disorders.

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the answer is b.) hydrogen bonds between bases.