A lack of Vitamin D is said to be detrimental to the maintenance of bone density. If a

scientist wanted to determine whether this view was supported by scientific evidence,

which of the following would be the best method of doing so?

(a) carry out a survey of people with normal bone density to find out whether they

take Vitamin D tablets or not

(b) compare the bone density of two groups of people with low bone density after

providing only one of the groups with Vitamin D

(c) compare the incidence of people with low bone density in two different populations

(d) carry out an experiment in which a group of people with normal bone density are

exposed to very little sunlight to prevent the production of Vitamin D

Question

Biology

Tatum Randolph

5 December, 08:00

A lack of Vitamin D is said to be detrimental to the maintenance of bone density. If a

scientist wanted to determine whether this view was supported by scientific evidence,

which of the following would be the best method of doing so?

(a) carry out a survey of people with normal bone density to find out whether they

take Vitamin D tablets or not

(b) compare the bone density of two groups of people with low bone density after

providing only one of the groups with Vitamin D

(c) compare the incidence of people with low bone density in two different populations

(d) carry out an experiment in which a group of people with normal bone density are

exposed to very little sunlight to prevent the production of Vitamin D

+2

Answers (2)

Know the Answer?

Twig · Answer 1

I would do B because then you can compare people who do take Vitamin D to people who don't and then you can see who has better bones and the effects.

Uriel · Answer 2

D is also a good option because when their little production of vitamin D we can easily determine what is the effect of this experiment to the bone density ...