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.

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

A reporter summarized the situation

Answer 1

The sentences that need a colon added are:

1. There are three main categories of ecosystems: freshwater, marine, and terrestrial.
2. A reporter summarized the situation:

These sentences require a colon to introduce a list or elaboration following the main clause.