Which of the following is a difference between lifespan and life expectancy?
A) Lifespan is the maximum number of years of life attainable, whereas life expectancy is the expected number of years of life remaining.
B) The lifespan of Americans has been steadily increasing over the years, whereas their life expectancy has been steadily decreasing over the years.
C) The lifespan of an individual cannot be increased with the aid of medical technology, whereas the life expectancy of an individual can be increased easily.
D) Individuals with a high lifespan have very high energy requirements, whereas individuals with a high life expectancy have very low energy requirements.
Question 2
The primary carbohydrate contained in human milk is _____.
A) lactose
B) glucose
C) maltose
D) sucrose
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