Answer:
Enzymes are proteins that act as biological catalysts. Catalysts accelerate chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products.
Explanation:
Write a letter to the author of a daily newspaper stressing about your concern on the rising prices and inflation.
a as jake was reading the email from june yet again, the flight attendant coughed gently to get his attention. this is complex because it has the phrase yet again, gesturing they are starting a new part of the sentence and to have a complex sentence there must be a compound sentence. this answer is just to the best of my knowledge!!
HAVE AN AMAZING DAY!!
Answer:
Explanation:
I haven't heard ...
I is first person singular.
The irregular verb form to use is have (not) heard.
But I didn't hear is the past tense that is also correct.
I hadn't heard is also correct.
The only one that is really wrong is D.