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nadezda [96]
1 year ago
15

Review the scenario. An ecologist was studying lake ecosystems in and around a major city. The ecologist regularly observed peri

ods of fish kills in the lakes, where fish would die suddenly and in large numbers. The ecologist wondered what was causing these fish kills. By investigating and comparing observations to lakes further from the city, the ecologist noticed that lakes around the city had significant algae growth and reduced oxygen levels in the water. Question Which question most closely relates to the ecologist's observations and collected data on lakes in and around the city? Are fish dying due to reduced oxygen in the water? Are fish dying due to reduced oxygen in the water? Is a predator killing all of the fish? Is a predator killing all of the fish? Do the fish have a disease? Do the fish have a disease?, Are the lakes polluted? Are the lakes polluted?
Biology
1 answer:
Bezzdna [24]1 year ago
7 0

The question that most likely relates to the ecologist's observations and collected data is, 'Are fish dying due to reduced oxygen in the water?'

<h3>Research questions</h3>

Research questions are usually coined from observations. Observation is the first step in the scientific method. Once the research questions have been formed, hypotheses follow.

In this case, the ecologist, who happens to be the researcher in this case, observed that fishes were dying in large numbers. Fortunately for the researcher, he also observed that the lakes around the city where fishes were dying had significant algae growth as well as reduced oxygen levels.

The right questions to ask, therefore, should try and relate to observations together.

Thus, linking the death of the fishes to reduced oxygen levels in the lakes is the right question to ask.

More on research questions can be found here: brainly.com/question/27824868

#SPJ1

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Lobe-finned fishes are characterized by lobes in their fins in addition to the basic characteristics of fishes.

<h3>What are lobe-finned fishes?</h3>

Lobe-finned fishes are a group of fish known as Sarcopterygii. They possess the basic characteristics of fishes such as swim bladder, lateral lines, etc.

They are a sister group of ray-finned fishes. In addition, lobe-finned fishes possess the following characteristics:

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