Identify two environmental factors that can lead to an increase in the
number of epigenetic markers that modify gene expression

Blood transfusions were rarely done and often fatal; they were outlawed until the nineteenth century.

Your mom and uh your mom!

The answer is d because , safety almost always works, to prevent stds and pregnancy

The average resting heart rate (hrrest) for a 34 year old is 73 beats per minute2. 34 year old males average heart rates of 71 bpm while females average slightly higher at 76 bpm2. the normal resting heart rate range for all adults and children 10 and over is between 60 and 100 beats per minute3. 90% of 34 year olds resting pulses fall within the range of 54 to 92 bpm. in general, an adult's resting heart rate will be lower for those in better athletic condition.