Question

Which sentences need a colon added? Select the two correct answers.(1 point)
Responses

The professor correctly predicted the results of her experiment, which showed that getting too little sleep caused people to make more mistakes.
The professor correctly predicted the results of her experiment, which showed that getting too little sleep caused people to make more mistakes.

When thunderstorm updrafts lift raindrops into colder temperatures, they form hail.
When thunderstorm updrafts lift raindrops into colder temperatures, they form hail.

There are three main categories of ecosystems freshwater, marine, and terrestrial.
There are three main categories of ecosystems freshwater, marine, and terrestrial.

A reporter summarized the situation “The floodwaters are finally receding, and the cleanup has begun.”
A reporter summarized the situation “The floodwaters are finally receding, and the cleanup has begun.”

Some fish have large teeth, such as the sheepshead fish and the payara.

Answer 1

Correct answers:
- There are three main categories of ecosystems freshwater, marine, and terrestrial.
Correction: There are three main categories of ecosystems: freshwater, marine, and terrestrial.
Reason: A colon introduces the list.

- A reporter summarized the situation “The floodwaters are finally receding, and the cleanup has begun.”
Correction: A reporter summarized the situation: “The floodwaters are finally receding, and the cleanup has begun.”
Reason: A colon introduces the quoted summary.