Answer:
I'm pretty sure its the Larynx, or voice box
Explanation:
An author's credentials can determine a health source's credibility. None of the other options would apply to credibility. When it comes to health, if you want to make sure that what you are researching or reading is authentic and reliable you need to find out whether the author is a professional health expert or not. You can do this by finding out their credentials.
The child will not be emotionally stable
Answer: cellulose gives cell walls of plants their rigid structure
False, that would be very rude to your partner.