When I researched this question it kept brining up the Elbow Joint.
7.
C) Spinal column
8.
D) Moist
Answer:
Carbon, Hydrogen and Oxygen :)
Answer:
Option E, Not enough information is provided.
Explanation:
Given
Frequency of carriers for a rare autosomal recessive genetic condition
As per Hardy Weinberg's principles, frequency of carriers is represented by 
The second equation of Hardy Weinberg's principle states that -

Thus, we have only one component i.e
and no other values of p or q. Thus, the information provided is not sufficient to solve the question.
Option E, Not enough information is provided.
The answer is D) Structural
That is because we can automatically cross A out, and B is not the answer because ionic compounds aren't polyatomic. Poly atomic atoms are covalent and have no charge. While on the other hand, ions have a charge.
Also, C is not the answer because the molecular formula for glucose is <span>C6H12O6, that leaves us with choice D.
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I can pretty much conclude that D is the answer because you can see that the picture, it has a structure for the compound. Its showing us how the atoms are bonded and structured.