PLEASE HELP!

WHAT WOULD A 13 YEAR OLD"S HEARTRATE BE AFTER DING THIS!

100 meters Fast Stride

Walk back

90 meter fast stride

Walk back

80 meter fast stride

Walk back

70 meter fast stride

Walk back

60 meter fast stride

Walk back

50 meter fast stride

As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article about the hazards of prolonged exposure to the sun's rays. your curious nature leads you to research the subject further. you're fascinated to learn that minimal exposure to the sun allows you skin to manufacture vitamin d, which is important to maintain homeostasis. you also read that although sunscreen can protect you from the ultraviolet (uv) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.

Results from damage to tiny air sacs in the lungs

Recognizing your emotions is an important first step toward a. dealing with them in a healthy way b. acting on them immediately c. using defense mechanisms to deal with them d. denying that they exist