Tammy is using a treadmill, and when she puts her hands on the bar, sensors read her heart rate. today, the sensors are telling tammy that she is reaching 183, which is the highest rate in her target zone. what should she do to get the most effective workout? a. increase her running speed without adjusting the incline. b. use the machine to maintain or decrease her intensity. c. do additional aerobic exercises immediately after the treadmill. d. use the machine to increase the incline and intensity.

micro/nanoscale topography surface exhibits many prominent properties and is extensively employed in biomedical device, microfluidic device and energy device fabrication. additionally, the clinical applications of biomaterials can be largely expanded with of nanostructured surfaces.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

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