Which of the following are useful to malware authors who want to obfuscate code to defeat simple analysis tools?

We can use symbolic analysis to identify malware behaviors. 

We run malware in a sandbox to analyze its behaviors because we can guarantee that malware can never break out of a sandbox. 

Heap overflow can affect a pointer that is not pointing to a memory buffer.

Given a specific program, say, your version of Word, it is possible to determine whether the program has a security bug. 

During urine formation, the volume of filtrate changes as it moves each structure, except for which structure?

Place the structures of the urinary tract in order. 

Which structure is the reservoir for urine?

How will parasympathetic stimulation impact urine frequency? 

What is the correct order for the respiratory tract?