Answer:
They both live in the water
They are both vertebrates
They both have fins
Explanation:
Whales are warm-blooded; fish aren't
Whales have to surface to breathe; fish don't
Whales give birth; fish lay eggs
Answer: D) To freely trade with the bloc's other member countries.
Explanation:
Free trade means there aren't any tariffs between any two countries. So any two countries can sell whatever goods they want without any extra taxes, fees, etc added on.
Choices A through C all describe situations in which trade is reduced/restricted between any two countries. This makes a nation more independent, but the drawback is that they aren't connected to the global stage as much.
Theoretically in an economic sense, a country is better off being connected more globally because it allows for specialization to happen and it lowers costs. Of course on a practical realistic level, things are more complicated but this is the general idea at least.
In Federalist Paper number 78, Alexander Hamilton asserts that the JUDICIAL department of government is the least powerful branch of government because it has no power over the sword (military/wars) or purse (money).