The passage is mainly concerned with .
A.bony flatfish
B.evolution asymmetrical
C.symmetrical flatfish
D.different types of flatfish

The author mentions skates and rays as examples of fish that .
A.have spread horizontally
B.become asymmetrical
C.resemble sharks
D.appear to fly

According to the passage, the ability of a bony flatfish to move its eyes around is .
A.average
B.excellent
C.weak
D.variable

According to information in the passage, which of the following is LEAST likely to occur as a result of animals' intuitive awareness of quantities?
A.A pigeon is more attracted by a box containing two pieces of food than by a box containing one piece.
B.A lion follows one antelope instead of the herd of antelopes because it is easier to hunt a single prey.
C.When asked by its trainer how old it is, a monkey holds up five fingers.
D.When one of its four kittens crawls away, a mother cat misses it and searches for the missing kitten

What is the passage mainly about?
A.A new kind of currency in the virtual world
B.A way of doing business in the virtual world
C.An alternative to bitcoins created by Nakamoto
D.The future of bitcoins in the real world

The word “minuscule” is closest in meaning to .
A.considerable
B.small
C.minimal
D.increasing

Which of the following is defined in the passage?
A.Bitcoins
B.Transactions
C.Credit cards
D.Public Database

How is HappyNews different than other news sources?
A.All of the stories are written by Reese.
B.HappyNews does not exaggerate its stories.
C.Its stories are not about bad things.
D.The website only has stories about women.

Which of the following is the best title for this passage?
A.“Byron Reese Tells People How to Be Happy”
B.“Good News for a Change”
C.“Newspapers vs. Online News”
D.“Why Women Like HappyNews”

The word "odd" in bold refers to which of the following?
A.unusual numbers
B.numbers such as 1,3,5, and so on
C.lucky numbers
D.numbers such as 2,4,6, and so on