Biology I SOL Practice Test — Set 6 of 6
Set 6 of 6 — 50 more free Biology I SOL practice questions from official VDOE released tests.
1. The organisms at the beginning of a food chain are —
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Answer: A — producers
2. In the DNA model, what sequence of bases is complementary to A-G-C-T-A?
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Answer: J — T-C-G-A-T
3. Which is a difference between gymnosperms and angiosperms?
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Answer: H — Only angiosperms produce seeds within fruits.
4. This key can be used to identify the species of some wildflowers found in Virginia. All of the plants described have blue or purple flowers with five fused petals. Key characteristics: Flowers with petals of equal length and a wide, upright shape identify Virginia bluebell (Mertensia virginica). Flowers with tubular shapes, dangling orientation, or uneven lower lobes identify other species listed below. According to this key, the plant described as having five fused petals of equal length with a wide, upright flower belongs to which species?
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Answer: B — Virginia bluebell (Mertensia virginica)
5. Which of the following methods would provide the most accurate information for students collecting data about local attitudes concerning the use of alternative fuels for automobiles?
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Answer: F — Take an opinion poll of drivers
6. Which characteristic of prokaryotic organisms makes them different from eukaryotes?
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Answer: A — Prokaryotic cells do not have membrane-bound organelles.
7. A bacterium will construct different proteins to metabolize the sugars lactose or glucose, depending on which one it detects in the outside environment. What part of the bacterium allows it to recognize different substances in the outside environment?
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Answer: B — Cell membrane
8. In order to maintain homeostasis, it is most important for an animal to be able to —
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Answer: F — respond to its environment
9. Some organisms produce few offspring and provide parental care, while others produce many offspring with little or no parental care. Which organism has the greatest risk of losing a population due to the death of only a few individuals?
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Answer: H — Elephants
10. A DNA fingerprint from an adult cat is compared with four kittens. The kitten whose DNA pattern shares the greatest number of matching bands with the adult cat is the offspring. Which kitten is most likely the offspring of the cat?
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Answer: D — 4
11. A study measured turkey growth at different percentages of vitamin supplement added to feed. Growth increased up to 10% supplement and then decreased at higher percentages. According to the data, what percentage of vitamin supplement should be added to maximize growth?
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Answer: H — 10%
12. What is the body’s first line of defense against disease?
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Answer: D — Skin
13. An experiment is designed to clear an oak-hickory forest and replant the area with pine trees. A chart shows that hooded warblers rely primarily on oak-hickory mature forest, while other birds use shrubs, grassland, or pine forests. Which species would be most threatened by this experiment?
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Answer: J — Hooded warbler
14. The processes of meiosis and fertilization help ensure the survival of a species by providing each generation with the same number of —
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Answer: B — chromosomes
15. Enzymes only work with specific substrates because each substrate —
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Answer: F — has a specific activation site for enzyme attachment
16. Which of these is a common adaptation for mammals in an aquatic environment?
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Answer: B — Streamlined body
17. All of these are common shapes of bacteria EXCEPT —
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Answer: H — square
18. Average transpiration rates were measured in corn plants across four plots on several dates. One value shows a dramatic spike far above all others on June 15 for Plot 2. Which item of data is most likely invalid?
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Answer: B — Plot 2 on June 15
19. Which organism is correctly paired with its metabolism type?
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Answer: G — Human — heterotroph
20. In plants, gymnosperms have cones and angiosperms have flowers. Both structures are specialized for —
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Answer: A — sexual reproduction
21. A simplified nitrogen cycle shows nitrogen in the air, nitrogen-fixing bacteria, plants, animals, decomposers, and nitrogen compounds in soil. Which process returns nitrogen to the air?
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Answer: G — Decomposition
22. Three groups of seeds were exposed to pollutants at different temperatures, but there was no group grown without pollutants for comparison. Why are the results not valid?
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Answer: C — No control
23. Fossil records of horse foot structure over 40 million years show a progression from multiple toes to a single toe. According to this record, the structure of the horse’s foot has —
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Answer: F — lost its toes
24. Why should a student researching genetics use the most recent textbooks available?
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Answer: C — New discoveries frequently add to older knowledge in genetics.
25. A wildlife nesting chart shows that the greatest number of species in sandy beach and dune ecosystems nest directly on the ground. Where would a student find nests of the most species?
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Answer: H — Ground
26. Which of the following came first in the scientific study of living things?
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Answer: A — Light microscope
27. Which is a property of pure water?
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Answer: J — It dissolves many substances.
28. A predator of the lynx enters the food chain. What would most likely happen to the hare population?
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Answer: C — Hares increase
29. DNA replication is necessary before a cell —
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Answer: H — divides into two cells
30. Cowbirds sing their own species’ song even though they were raised by other birds. This is an example of —
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Answer: B — instinct
31. According to the biological definition of a species, which organisms belong to the same species?
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Answer: H — Animals that can breed and produce fertile offspring
32. Orchids were studied to determine whether humidity affected flowering. What was the independent variable?
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Answer: A — Percentage of humidity
33. A diagram shows carbohydrates produced in chloroplasts during photosynthesis and then used in mitochondria to make ATP. Which statement is supported?
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Answer: J — Carbohydrates are converted into ATP by mitochondria
34. An organism that causes infections but cannot be seen with a light microscope is most likely a —
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Answer: A — virus
35. A rabbit test cross shows 75% black offspring and 25% white offspring. What conclusion is supported?
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Answer: G — All the F₁ rabbits carried a recessive allele
36. Which scientific achievement best represents collaboration among scientists?
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Answer: D — Watson and Crick working together on DNA structure
37. Which statement is an observation about a black swallowtail butterfly?
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Answer: J — It laid its eggs on a parsley plant
38. A pedigree showing that only males are affected by a disorder indicates what type of inheritance?
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Answer: B — Sex-linked
39. Which disease could be successfully treated with antibiotics?
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Answer: D — Strep throat
40. Inbreeding in endangered species may lead to extinction because it may —
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Answer: F — reduce genetic diversity
41. Proteins are formed from monomers called —
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Answer: A — amino acids
42. What scientific development allowed taxonomists to establish the Monera and Protista kingdoms?
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Answer: H — Electron microscope
43. Which characteristic supports the hypothesis that an animal spends much time burrowing in soil?
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Answer: D — Size of its claws
44. Which method of moth control would be most dangerous to honeybees?
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Answer: H — Spraying insecticides
45. Paramecium, amoeba, and euglena are one-celled eukaryotes. What characteristic do they all share?
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Answer: B — Nucleus
46. Which adaptation most likely allowed mammals to survive after dinosaur extinction?
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Answer: D — Endothermic metabolism
47. Data comparing leaf production under different environmental conditions show that leaf number increases with higher temperatures while other factors remain constant. Which variable appears to control leaf production?
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Answer: G — Temperature
48. A student constructs several terrariums that are identical except for the amount of sunlight each receives per day. In order to determine the ideal amount of sunlight for plant growth, which variable must be held constant?
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Answer: A — Type of plants
49. Which of the following is evidence to support the idea that two different species might have a common ancestor?
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Answer: G — Many of their genes are the same.
50. Information about reproduction and development of three animals is summarized as follows: Sea anemone: asexual or sexual reproduction Frog: sexual reproduction Monkey: sexual reproduction The information supports which conclusion?
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Answer: A — Frogs are more closely related to monkeys than to sea anemones.
Biology I SOL practice test — FAQ
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How many Biology I SOL practice questions are there?
Across all sets, there are 395 Biology I practice questions drawn from official Virginia Department of Education released SOL tests. This set has 50.
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The questions are adapted from official VDOE released SOL tests for Biology I. SOL Prep is an independent study aid and is not affiliated with or endorsed by the Virginia Department of Education.
Practice items adapted from Virginia Department of Education released SOL tests. Practice items are provided for study purposes and are not affiliated with or endorsed by the Virginia Department of Education.