I believe the answer is <span>c. absorption
</span>The phase of pharmacokinetic that happens in the intestine is when the drug absorbed. A person with old age will have lower intestine motility. This will increase the transit time which will increase the amount of drug absorbed.
Age could also influence others pharmacokinetic parameter(<span>excretion, distribution, metabolism) but it is related with another organ, not intestine.</span>
Answer:
they ensure valid results
Answer: D. Passed on from parent to offspring
E is the answer to your question
An magnet is what attracts metal so you have to use common since and figure out the rest of the answer .