Which one of the following options means "arboreal" and "camouflage"?

From the passage: By 1798, Jenner had succeeded in demonstrating the protective quality...

'Local reaction' refers to

Flying this simple aeroplane is a _________ for the experienced pilot.

Leela is always nasty and inconsiderate with her colleagues; now that she has a rude superior, she is getting ____________.

I still have two more difficult exams left, but I'm trying to _______; after these I won't have any more for a year!

For the past three decades, this chain of coffee shops has been committed to building a culture where everyone is welcome. They are an ally to the LGBTQ community, and this is just one instance of their _________.

Ever since Girish won the prestigious Infosys prize, he has been behaving_________.

Some of the best spies take the guise of innocuous secretaries or researchers and are able to send large amounts of information to their heads of espionage, as they are_________.

She ________ her classmates because she comes from a very rich, aristocratic family.