Answer to Question 1
Limited changes in physical development: hair thins and tends to turn gray, may experience a receding hairline, storage of body fat increases; the distribution of fat changes to increased waist-to-hip ratio, tendency to put on weight until mid 50s: start to lose weight and slowly lose height after approximately age 60, bones start to shrink, hearing and vision degrade first before other senses.
Answer to Question 2
Answers can include: stress higher levels of environmental factors. Brumbauer (1997) found that after years of immigration, regardless of ethnicity, girls menstruate earlier in North America than in their countries of origin.
The spatial distribution of trees in three separate stands of different ages on Vancouver Island (da
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