Answer:
White blood cells are soldiers in fending off infections and viruses. When a threat is detected, the white blood cells flow through the bloodstream to destroy the harmful bacteria. They are also plentiful, and are often successful in protecting the body.
In media res is a literary device that means "in the middle of things."
Next time be more specific of what you need help with
Answer:
1. emission
4. poverty
Explanation:
1. I think we need a noun or V-ing here, but my choice is emission, behind a preposition.
4. Live in poverty - If I'm not wrong, it is a collocation
The answer is D. Is difficult for many to understand because there are cultural backgrounds where people are taught different ways to say the term.
