Answer:
A. What are you talking about, Marcus? Asked Shelby.
Explanation:
The correct way of writing the above sentence will be
"What are you talking about, Marcus?" asked Shelby.
As the sentence is based on a conversation, inverted commas should be used to open the sentence as well as close it. The rest of the options are indirect speeches while the first option is a direct speech. Thus, the punctuation.
Answer:
B. Has been snowing (hope this helps)
Answer:
They are more formal
Explanation:
I couldn't remember from this because i was too busy doing my own thing instead of paying attention, but i for sure hope this helps
Your group should have now written down the simple definiton of DNA and what it stands for Deoxyribonucleic Acid. Where it is found - nucleus. how does it look like. what it contains. etc. To make it interesting, make a scenario on how Genetic DNA is done. Model wise, show using materials or tools like magnet etc