Question

exam lesson name: introduction to human anatomy and physiology
exam number 700704rr
exam guidelines
exam instructions
question 16 of 20 :
select the best answer for the question

1. many people dont get enough vitamin d and calcium, which can cause bones to be fragile. the lack of vitamin d and calcium is an example of a

a. deficiency
b. hereditary disease
c. genetic disease
d. toxicity
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Explanation:

To solve this, we analyze each option:

• Option A: A deficiency is a lack of a necessary substance (like vitamin D or calcium here). This matches the scenario of not getting enough of these nutrients.
• Option B: Hereditary diseases are passed down through genes, not related to nutrient lack.
• Option C: Genetic diseases are caused by genetic mutations, not nutrient deficiency.
• Option D: Toxicity is an excess of a substance, not a lack.

So the correct answer is A as it fits the definition of a deficiency.

Answer:

A. deficiency