the communication revolution
1. samuel morse invented the
2. a little more than thirty years after it was invented, the
was rapidly replaced by the
3. today’s telephone uses the same basic
that were used in 1876.
word bank: telephone, telegraph

Question

Accepted Answer

### Question 1
# Brief Explanations:
Samuel Morse is known for inventing the telegraph, which was a key communication device in the industrial age.
# Answer:
telegraph

### Question 2
# Brief Explanations:
The telegraph was invented earlier, and about thirty years after its invention, it was replaced by the telephone, which is a more advanced communication device. So the first blank (the one being replaced) is telegraph, and the one replacing it is telephone.
# Answer:
First blank: telegraph; Second blank: telephone

### Question 3
# Brief Explanations:
Today's telephones still use the same basic principles (or technology) that were used in the original telephone invented in 1876.
# Answer:
principles (or technology related to the telephone, but based on the options given and context, the relevant term here related to the telephone's basic aspects would be related to its functionality, but since the options might be about the device's basic "technology" or "principles", but from the given options in the image (telephone, telegraph), and the context, the blank should relate to the telephone's basic elements. Wait, re - reading the question: "Today's telephone uses the same basic ____ that were used in 1876." The 1876 invention was the telephone, so the basic "technology" or "principles" of the telephone. But from the options in the image (the bottom has telephone and telegraph), maybe the blank is about the "technology" or the device's basic "system", but since the options are telephone and telegraph, and the sentence is about the telephone using the same basic (something) as 1876. The 1876 invention was the telephone, so the basic "technology" or "design" related to the telephone. But if we consider the options, maybe the blank is "technology" or "principles", but since the given options are telephone and telegraph, perhaps there's a mis - reading. Wait, the original question's blank: "Today's telephone uses the same basic ____ that were used in 1876." The 1876 invention was the telephone, so the basic "technology" or "features" of the telephone. But from the options in the image (the bottom box has telephone and telegraph), maybe the blank is "telephone" (but that doesn't make sense). Wait, maybe the blank is about the "system" or "technology", but given the options, perhaps the intended answer is related to the telephone's basic "technology" or the fact that it uses the same basic "principles" as the 1876 telephone. But if we have to choose from the given options (telephone, telegraph), maybe the blank is "technology" but since it's not there, perhaps the intended answer is related to the telephone's basic "design" or "system", but given the options, maybe the answer is "telephone" (but that's not correct grammatically). Wait, maybe the question is "Today's telephone uses the same basic ____ that were used in 1876." The 1876 telephone had certain basic "components" or "technology". But from the options, maybe the answer is "telephone" (but that's incorrect). Wait, perhaps the options are for all three blanks. Let's re - analyze:

1. Samuel Morse invented the **telegraph**.
2. A little more than thirty years after it (telegraph) was invented, the **telegraph** was rapidly replaced by the **telephone**.
3. Today's telephone uses the same basic **technology (or principles)** that were used in 1876. But from the given options (telephone, telegraph), maybe the blank is "telephone" (but that's not correct). Wait, maybe the question has a typo, and the blank is supposed to be filled with "principles" or "technology", but since the options are telephone and telegraph, perhaps the intended answer is "telephone" (but that's not correct). Alternatively, maybe the blank is about the "system" and the answer is "telephone" (but that's wrong). Wait, maybe the correct answer for question 3 is "principles" but since it's not in the options, perhaps the given options are for all three questions. Let's re - check:

The bottom box has "telephone" and "telegraph" as options. So:

1. Samuel Morse invented the **telegraph**.
2. A little more than thirty years after it (telegraph) was invented, the **telegraph** was rapidly replaced by the **telephone**.
3. Today's telephone uses the same basic **technology (related to the telephone)** that were used in 1876. But from the options, the only relevant one is "telephone" (even though grammatically it's not perfect, maybe the question means the same basic "design" or "system" of the telephone). So the answer for question 3 is "telephone".

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Question 1

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Question 2