SAT Subject Biology E/M Practice Test 3: Biology-E

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Question 20 questions

Time 15 minutes

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1. The driest of all terrestrial biomes, characterized by low and unpredictable precipitation

A. Tundra
B. Taiga
C. Tropical rain forest
D. Deciduous forest
E. Desert

2. Coniferous forests, characterized by long, cold winters and short, wet summers

A. Tundra
B. Taiga
C. Tropical rain forest
D. Deciduous forest
E. Desert

3. Biome characterized by great diversity of flora and fauna and high levels of precipitation

A. Tundra
B. Taiga
C. Tropical rain forest
D. Deciduous forest
E. Desert

4. Northern areas, characterized by permafrost, extremely cold temperatures, and few trees

A. Tundra
B. Taiga
C. Tropical rain forest
D. Deciduous forest
E. Desert

5. Plants that have true roots, stems, and leaves, as well as flowers and seeds enclosed in fruit, are classified as

A. bryophytes
B. tracheophytes
C. gymnosperms
D. angiosperms
E. endosperms

6. Which of the following indicates that animals have internal biological clocks?

A. A mouse kept in constant darkness shows a daily rhythm of activity.
B. A rooster crows whenever the sun rises in both winter and summer.
C. An owl kept in constant light drifts away from a 24-hour cycle.
D. Some species of birds can sense fluctuations in the Earth's magnetic field.
E. A squirrel whose night and day are artificially reversed soon adapts to its new schedule.

7. Which of the following correctly lists the phylogenic hierarchy?

A. Domain, kingdom, phylum, family, class, order, genus, species
B. Phylum, family, order, domain, class, kingdom, species, genus
C. Kingdom, domain, family, order, class, phylum, genus, species
D. Domain, kingdom, phylum, class, order, family, genus, species
E. Family, kingdom, order, domain, phylum, genus, class, species

8. A rattlesnake would be classified as a

A. tertiary consumer and a heterotroph
B. secondary consumer and an autotroph
C. producer and an autotroph
D. producer and a heterotroph
E. primary consumer and a heterotroph

9. At some point in their development, chordates possess all of the following EXCEPT

A. a dorsal hollow nerve cord
B. a notochord
C. gill slits
D. postanal tail
E. an exoskeleton

10.

A population of birds (Population A) on a remote, isolated island is studied to determine beak length. The resulting data are plotted in Figure 1.

Figure 1

Suppose that 200 years later, the beaks of the birds on the island were again measured (Population B). The data, when plotted, yielded a graph as in Figure 2.

Figure 2

What is the average beak length (in cm) of the birds in Figure 1 ?

A. 30 cm
B. 15 cm
C. 5 cm
D. 3 cm
E. 1 cm

11.

A population of birds (Population A) on a remote, isolated island is studied to determine beak length. The resulting data are plotted in Figure 1.

Figure 1

Suppose that 200 years later, the beaks of the birds on the island were again measured (Population B). The data, when plotted, yielded a graph as in Figure 2.

Figure 2

What is the most likely reason for the difference in distribution of beak lengths between the data plotted in Figure 1 and the data plotted in Figure 2 ?

A. All birds with beaks of 30 mm flew to a new island over the 200-year time span.
B. Birds with beaks of 30 mm were selected against.
C. Predators consumed birds with beaks of 40 mm.
D. Predators consumed birds with beaks of 20 mm.
E. Birds with beaks of 30 mm were selected for extinction.

12.

A population of birds (Population A) on a remote, isolated island is studied to determine beak length. The resulting data are plotted in Figure 1.

Figure 1

Suppose that 200 years later, the beaks of the birds on the island were again measured (Population B). The data, when plotted, yielded a graph as in Figure 2.

Figure 2

Suppose that a researcher studying Population B found that birds with beaks of 20 mm were unable to mate with birds that had 40 mm beaks. These two groups of birds would now be classified as

A. occupying different niches
B. separate species
C. competitors
D. predators
E. separate populations

13.

A population of birds (Population A) on a remote, isolated island is studied to determine beak length. The resulting data are plotted in Figure 1.

Figure 1

Suppose that 200 years later, the beaks of the birds on the island were again measured (Population B). The data, when plotted, yielded a graph as in Figure 2.

Figure 2

How would beak length in the bird population change after another 200-year time span?

A. The average beak length would return to 30 mm.
B. The average beak length would shift to 40 mm.
C. The average beak length would shift to 20 mm.
D. The differences in beak length would be more pronounced.
E. It is not possible to determine how beak length might change.

14. Acid rain is formed after the burning of fossil fuels releases compounds containing nitrogen and sulfur into the atmosphere. Sunlight and rain bring about chemical reactions that convert these compounds into nitric acid and sulfur dioxide, which combine with water droplets to form acid rain. Acid rain typically has a pH of approximately 5.5.

The higher acidity of soil and water affects many living organisms adversely. As the pH of lake water falls, fish become ill and die. Table 1 shows the effects of pH on the size of adult fish.

Table 1

Mycorrhizal fungi, which form a mutualistic association with many plant roots, are particularly sensitive to the effects of acid rain. These fungi facilitate the absorption of water and nutrients by the plants; in turn, the plants provide sugars and amino acids without which the fungi could not survive.

The effect of acid rain on fish size is b

A.
B.
C.
D.
E.

15. Acid rain is formed after the burning of fossil fuels releases compounds containing nitrogen and sulfur into the atmosphere. Sunlight and rain bring about chemical reactions that convert these compounds into nitric acid and sulfur dioxide, which combine with water droplets to form acid rain. Acid rain typically has a pH of approximately 5.5.

The higher acidity of soil and water affects many living organisms adversely. As the pH of lake water falls, fish become ill and die. Table 1 shows the effects of pH on the size of adult fish.

Table 1

Mycorrhizal fungi, which form a mutualistic association with many plant roots, are particularly sensitive to the effects of acid rain. These fungi facilitate the absorption of water and nutrients by the plants; in turn, the plants provide sugars and amino acids without which the fungi could not survive.

The relationship between mycorrhizal fung

A. one partner benefits from the association and the other partner is harmed
B. one partner benefits from the association and the other partner is neither harmed nor helped
C. one partner preys upon the other partner
D. both partners benefit from the association
E. neither partner benefits from the association

16. Acid rain is formed after the burning of fossil fuels releases compounds containing nitrogen and sulfur into the atmosphere. Sunlight and rain bring about chemical reactions that convert these compounds into nitric acid and sulfur dioxide, which combine with water droplets to form acid rain. Acid rain typically has a pH of approximately 5.5.

The higher acidity of soil and water affects many living organisms adversely. As the pH of lake water falls, fish become ill and die. Table 1 shows the effects of pH on the size of adult fish.

Table 1

Mycorrhizal fungi, which form a mutualistic association with many plant roots, are particularly sensitive to the effects of acid rain. These fungi facilitate the absorption of water and nutrients by the plants; in turn, the plants provide sugars and amino acids without which the fungi could not survive.

If the pH of the soil were 7.0, what woul

A. The fungi would survive but the plant would be harmed.
B. The fungi would be harmed but the plant would survive.
C. The fungi would be slightly harmed and the plant would be slightly harmed.
D. Neither the fungi nor the plant would survive.
E. Neither the fungi nor the plant would be harmed.

17. Acid rain is formed after the burning of fossil fuels releases compounds containing nitrogen and sulfur into the atmosphere. Sunlight and rain bring about chemical reactions that convert these compounds into nitric acid and sulfur dioxide, which combine with water droplets to form acid rain. Acid rain typically has a pH of approximately 5.5.

The higher acidity of soil and water affects many living organisms adversely. As the pH of lake water falls, fish become ill and die. Table 1 shows the effects of pH on the size of adult fish.

Table 1

Mycorrhizal fungi, which form a mutualistic association with many plant roots, are particularly sensitive to the effects of acid rain. These fungi facilitate the absorption of water and nutrients by the plants; in turn, the plants provide sugars and amino acids without which the fungi could not survive.

What might be the best strategy to preven

A. Stock the lakes with bigger fish so that they can resist the effects of the acid better
B. Reduce the amount of fossil fuels that are burned
C. Supply plants with excess phosphorus and water
D. Supply fungi with excess sugars and amino acids
E. Add alkalines to soil and water to neutralize the acid

18. Acid rain is formed after the burning of fossil fuels releases compounds containing nitrogen and sulfur into the atmosphere. Sunlight and rain bring about chemical reactions that convert these compounds into nitric acid and sulfur dioxide, which combine with water droplets to form acid rain. Acid rain typically has a pH of approximately 5.5.

The higher acidity of soil and water affects many living organisms adversely. As the pH of lake water falls, fish become ill and die. Table 1 shows the effects of pH on the size of adult fish.

Table 1

Mycorrhizal fungi, which form a mutualistic association with many plant roots, are particularly sensitive to the effects of acid rain. These fungi facilitate the absorption of water and nutrients by the plants; in turn, the plants provide sugars and amino acids without which the fungi could not survive.

Fungi are classified as

A. prokaryotic decomposers
B. eukaryotic producers
C. eukaryotic decomposers
D. eukaryotic autotrophs
E. prokaryotic consumers

19. The following graphs show the growth of two closely related species of paramecia, both when grown alone (Figure 1) and when grown together (Figure 2). Both species consume bacteria as their food source and reproduce by binary fission as often as several times a day.

Figure 1

Figure 2

The data in Figure 2 indicate that

A. P. aurelia is preying on P. caudata
B. P. aurelia is a better competitor than P. caudata
C. P. aurelia and P. caudata are in a symbiotic relationship
D. P. aurelia is a parasite of P. caudata
E. P. aurelia grew better when combined with P. caudata than it did when grown alone

20. The following graphs show the growth of two closely related species of paramecia, both when grown alone (Figure 1) and when grown together (Figure 2). Both species consume bacteria as their food source and reproduce by binary fission as often as several times a day.

Figure 1

Figure 2

Paramecia are members of the kingdom

A. fungi
B. animalia
C. archaea
D. protista
E. plantae