I have one more question. I think the author of this book made a mistake on the next analogy. Take a look and see if you agree.

Platyhelminthes:platypus
a)plateau:platitude
b)worm:marsupial
c)mammal:science
d)crystalline:canine

I think the author mistakenly labeled a platypus as a marsupial. Everything I find says they are not marsupials. Your thoughts?

True.

Is the author looking for similarities of words -- such as plateau:platitude??

Well I am supposed to find the best relationship between the groups of words. Such as synonyms, antonyms, time, form etc. I thought about the flat angle with plateau and platitude, but I didn't feel comfortable with that answer. What are your thoughts?

I think Ms. Sue is right: 2 that start with "platy-" and 2 that start with "plat-" -- the others have no such similarities.

To determine whether the author made a mistake in labeling the analogy, we need to verify if a platypus is indeed a marsupial.

Firstly, let's understand what a marsupial is. Marsupials are a specific group of mammals characterized by the presence of a pouch in which they carry and nurse their young.

Now, we can use various sources of information to find out if a platypus is a marsupial or not. One reliable source is a reputable zoological or scientific reference book or website.

Searching for "platypus classification" or "is a platypus a marsupial" on an authoritative website like the Encyclopedia Britannica or National Geographic can provide us with reliable information.

Alternatively, you can also search for scientific papers or articles written by zoologists who have studied platypus taxonomy and classification.

Once you have gathered the information, compare it to the statement made in the analogy. If the information you find confirms that a platypus is not a marsupial, you can conclude that the author did indeed make a mistake in labeling the analogy.

Remember, it's always essential to verify information from reliable sources to ensure accuracy.