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Science · Drill 117

Science practice 117

5 questions ~9 min recommended
⏱ 00:00
Score
—

Fish species1

Fish species A C D E F G
Relative ability to combat bacteria < 0.2 < 0.3 0.2 0.3 1.3 0.6 0.4
Habitat Shallow water with plants Shallow water with no plants Shallow water with no plants Deep water with no plants Shallow water with plants Shallow water with plants Shallow water with plants
Exposure to waterborne bacteria None Low Low Moderate High High High

Table 1

Key
Bacteria filtered water
Unfiltered water2

100 г
90
80
70
60
50
40
30
20
10
0
A D Fish species E F G3

Predicted bacteria level4

A 2000 2010 2020 2030 Year 2040 2050 Region 4 Region 3 Region 2 Region 15 2060

Because fish live in water, they are exposed to any bacteria that exist in the water. Table 1 lists the habitat choices of 7 species of fish in a local pond and the fish's ability to combat the effects of the bacteria found in the water.

Figure 1 shows the percent of fish that survive to adulthood in the lab for the 7 species, after exposure to water with bacteria present or exposure to water with the bacteria removed.

Figure 1

Figure 2 shows predicted bacteria levels over time in 4 geographic regions with fish populations.

Figure 2

1. Based on the information in Figure 1, fish from which species are most likely to survive prolonged exposure to bacteria?

2. According to the data in Figure 1, which species showed the greatest difference between the percent of fish that survived to adulthood after exposure to unfiltered water, and the percent of fish that survived to adulthood after exposure to filtered water?

3. Researchers recently discovered a new species of fish that lives in deep water without plants. Based on the data in Table 1, the researchers would predict that this species' relative ability to combat bacteria is most likely:

4. According to the information in Table 1, for all the species shown, higher exposure to bacteria generally results in:

5. Based on the data in Table 1 and Figure 1, fish that had the lowest percent of individuals survive to adulthood when exposed to bacteria tend to live in:

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