Answer:
A 17 year old with a resting heart rate of 62 bpm has a maximum hearth rate of 203 bpm, a hearth rate reserve of 141 bpm and target hearth rate between 161 and 182 bpm
Explanation:
Target heart rate is a measure used to calculate the range of heart rate that should be maintained during intense exercise.
Knowing a person's age and resting heart rate (RHR), a target heart rate calculation can be made from the maximum heart rate (MHR) and the hearth rate reserve (HRR)
Data:
- Age: 17 years old
- RHR: 68 bpm
The maximum heart rate is calculated by subtracting age from a constant value of 220, so:
- MHR = 220 - age
- MHR = 220 - 17
- MHR = 203 bpm
HRR is calculated by subtracting the resting heart rate (RHR) from the MHR value:
- HRR = MHR - RHR
- HRR = 203 - 62
- HRR = 141 bpm
THR is obtained by multiplying the HRR by 0.7 and 0.85, to obtain the range of heart rate in which the exercise can be performed.
- THR lower limit = (HRR x 0.7) + RHR Lower THR = (141 x 0.7) + 62 = 160.7 ≈ 161 bpm
- THR top limit = (HRR x 0.85) + RHR THR top = (141 x 0.85) + 62 = 181,85 ≈ 182 bpm
For the 17-year-old, the ideal target heart rate for an intense exercise is between the values of 161 and 182 bpm.
1A: Bloody diarreha
2B: A cooked hamburger
EXPLANATION: Symptoms of foodborne illnesses typical consist of non bloody or bloody diaherra, whilst for E. coli, they are generally found in the intestines of animals. Grilling almost always eliminates E. Coli on the meat's surface and on the inside while it being a greater risk in uncooked ground beef, which is used in hamburgers.
In human body, the normal range for blood pH is between 7.35 and 7.45. In the case of Mrs. Roberts who suffers from severe acidosis, her blood pH must be immediately back to normal because severe acidosis has a tendency to eat up all dentures enzymes and body tissue, which may hinder the normal cell function. Moreover, the reason why severe acidosis pose a serious problem is that it can lead to diabetic coma or even death.
Answer;-The above statement is true.
A scientific theory must be supported with empirical evidence.
Explanation;-A scientific theory is a specific type of theory used in the scientific method.-Every scientific theory starts as a hypothesis. A scientific hypothesis is a suggested solution for an unexplained occurrence that doesn't fit into a currently accepted scientific theory. -A hypothesis is an idea that hasn't been proven yet. If enough evidence accumulates to support a hypothesis, it moves to the next step; known as a theory, in the scientific method and becomes accepted as a valid explanation of a phenomenon.
Answer:
Explanation:
Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium.
