Biology I · Dynamic Equilibria in Ecosystems
Virginia SOL BIO.8
Virginia SOL BIO.8 is part of the Dynamic Equilibria in Ecosystems strand in Biology I (Science). Under this Standards of Learning objective, students investigate dynamic equilibria within populations, communities, and ecosystems. Below is what BIO.8 covers in plain language, the specific skills it is assessed on, the key concepts to review, and how to practice BIO.8 for the Virginia SOL test.
What SOL BIO.8 means
Investigate dynamic equilibria within populations, communities, and ecosystems.
Practice Biology I SOL questions
Free Biology I questions from official Virginia Department of Education released SOL tests — good practice while you work on BIO.8 and the rest of the course. Pick an answer to check it instantly, or open “Show answer” to review.
1. An understanding of which of these best enabled scientists to determine the approximate ages of fossils?
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Answer: D — Radioactivity
2. An important feature of modern classification systems is that they —
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Answer: B — can incorporate new scientific discoveries
3. In an aquatic habitat, an example of organisms from the pioneer community would be —
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Answer: D — algae
4. A table titled “Bird Sightings at Willow Point” lists daily counts of sparrows and wrens from May 12 through May 16. The average (mean) number of sparrows observed over this period is greater than the average number of wrens by 8 birds. Based on the data in the table, what is the difference between the mean number of sparrows and the mean number of wrens observed at Willow Point between May 12 and May 16?
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Answer: D — 8
Skills you’ll practice for BIO.8
- Explain interactions within and among populations, including carrying capacities, limiting factors, and growth curves.
- Explain how nutrients cycle and energy flows through ecosystems.
- Describe ecosystem succession patterns, including primary and secondary succession.
- Explain how natural events and human activities influence local and global ecosystems and may affect flora and fauna.
Key concepts covered by BIO.8
- carrying capacity
- limiting factors
- population growth
- logistic growth
- exponential growth
- nutrient cycling
- energy flow
- food chains
- trophic levels
- biogeochemical cycles
- ecosystem succession
- primary succession
- secondary succession
- climax community
- ecosystem impact
- human activities
- climate change
- habitat destruction
- conservation
How to study and practice SOL BIO.8
Start with a quick diagnostic to see whether BIO.8 is already solid, then work each skill above with guided notes, flashcards, and SOL-style practice questions. For official released items, see our Virginia SOL practice tests guide and how to study for the SOL test.
Frequently asked questions about SOL BIO.8
What is Virginia SOL BIO.8?
SOL BIO.8 is a Biology I Standard of Learning in the Dynamic Equilibria in Ecosystems strand. It expects students to investigate dynamic equilibria within populations, communities, and ecosystems.
What skills does SOL BIO.8 cover?
SOL BIO.8 is assessed on 4 skills: explain interactions within and among populations, including carrying capacities, limiting factors, and growth curves; explain how nutrients cycle and energy flows through ecosystems; describe ecosystem succession patterns, including primary and secondary succession; explain how natural events and human activities influence local and global ecosystems and may affect flora and fauna.
What strand of Biology I is SOL BIO.8 in?
SOL BIO.8 belongs to the Dynamic Equilibria in Ecosystems reporting strand of the Biology I Virginia Standards of Learning.
How do I study and practice for SOL BIO.8?
Start with a diagnostic to see whether BIO.8 is already solid, then work the 4 skills above with guided notes, flashcards, and SOL-style practice questions. For official released items, see the Virginia SOL practice tests guide.