MIT Technology Review: Peptides are everywhere. Here’s what you need to know. PBS: What are peptides, and are they safe?

Understanding the Context

Here's what to know Mortgage rates are shifting in today's borrowing landscape. Here's what buyers and refinancers need to know now. Investopedia: Accounting Principles: What They Are and How GAAP and IFRS Work Possible Duplicate: Singular or plural following a list Which of the following would be correct: What are the primary cause and the primary consequence of the... What is the primary caus...

Key Insights

"What are" or "What is" - English Language & Usage Stack Exchange How should I phrase "What is the first 5 digits of your home postal code" or "What are the first 5 digits of your home postal code?" grammatical number - Which is correct: "What is" or "What are ... I am often asked "Who are you?" and "What are you?", but I don't know the difference between these two questions. Please explain it to me. What is the difference between "What are you?" and "Who are you?"? When asked, "What are these called in English?" or similar, should we use just the right pronoun or can we also answer with the right demonstrative pronoun?

Final Thoughts

For example, which is grammatical or pre... "They are..." vs. "these are" when answering the question "What are ...