Crown of thorns starfish (COTS) is a pest which eats coral tissues, posing a huge threat to the reef. Australian Institute of Marine Science research showed coral cover on surveyed reefs had declined by about 50% over the past 30 years, with COTS responsible for almost half of that decline. James Cook University scientist Lisa Boström-Einarsson searched for an eradication method for COTS that was cheap, easily available and safe for everything other than the starfish themselves. Her method involved injecting the COTS with 20 milliliters of household vinegar. The trial saw a 100% kill rate within 48 hours of injection. "I tried alcohol [first] and that did not work very well, and then I heard some rumors that some people had used vinegar but had not had very good results," Ms Boström-Einarsson said. "So I refined the methods a little bit and then it turned out to work really well." Ms Boström-Einarsson said the starfish were mostly water inside and could not tolerate the acidity of the vinegar. "The acid basically just melts their insides," she said. "It is quite dramatic the way they go and within 24 hours there is basically just slime left — it is not pretty."

the scientific procedure followed in the article by describing the following:

State the problem
Identify a hypothesis from the article
Identify the procedures used in the experiment
Describe the results

Well, lets start with the problem. The starfish are eating away at the coral, and causing a huge threat to the reef. You can tell that this is the main problem because it is what they are trying to solve by killing the starfish.
Next you want to pick a hypothesis for how to fix a problem. It looks like you can choose from two. The scientist's first hypothesis was: If we inject the starfish with alcohol it will kill them, and save the reef. When that didn't work they had a second one, which was: If we inject the starfish with vinegar then we will kill the starfish, and save the reef.
For procedure they first went over research about the reefs and decided the starfish were a problem. Then they injected the starfish with alcohol, and when that didn't work they tried using vinegar after refining the methods used in the past.
In the end the starfish died and the reef was saved.

Yakavi Yakavi · Answer 2 · 2025-04-02T11:27:39-04:00

Scientific procedure followed in the article State the problem.

What does state the problem mean in scientific method?

The first step of the scientific method is the "Question." This step may also be referred to as the "Problem." Your question should be worded so that it can be answered through experimentation.

What is the scientific meaning of procedure?

The course of action, or the description of a course of action, taken for the solution of a problem.

Hence, A is correct option

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