<u>Answer:</u> The mass of Lisa now is 69.1 kg
<u>Explanation:</u>
We are given:
Weight of Lisa now = 152 pounds
To convert the given mass into kilo grams, we use the conversion factors:
1 kg = 2.2 pound
So, 
Weight of Lisa now = 69.1 kg
Hence, the mass of Lisa now is 69.1 kg
Endocrine system regulates hormone production, Estrogen is one of the hormones
Estrogen regulates women's reproductive cycle. Also plays role in keeping bones strong n healthy. After menopause estrogen levels dramatically falls and women experience bone loss and osteoporosis. So, women population affected the greatest.
PS. Women start out life with less bone density then men already.
The true statement is B. Teens are more vulnerable to contracting an STI because their bodies are less developed than adults. Also, from statistics, it has been reported that there are approximately 20 million new cases of STI in the US each year. Most of these cases are from the age group 15 - 24. The bodies of these teens are more biologically susceptible to STIs.
By checking your pulse and seeing if you heart rate is in the target heart rate zone.