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Questions and Answers
What aspect of biodiversity refers to the variety of genes within a species?
What is the primary goal of conservation efforts?
What is the term for the ability of a system to maintain its health and productivity over time?
What type of ecosystem is characterized by coral reefs, estuaries, and open ocean?
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What is the term for the study of changes in population size, structure, and distribution over time?
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What type of population growth is characterized by rapid growth, followed by stabilization?
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What is the primary function of helicase in DNA replication?
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What type of RNA carries genetic information from DNA to the ribosome during translation?
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During translation, what is the role of the initiator tRNA?
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What is the process of forming a complementary RNA strand from a DNA template called?
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What is the term for the heritable changes in gene expression that do not involve changes to the DNA sequence?
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What is the direction of synthesis for the leading strand during DNA replication?
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During DNA replication, what is the role of DNA ligase?
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What is the central dogma of molecular biology?
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What is the term for the process of regulating gene expression at multiple levels, including transcription, translation, and post-translational modification?
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What is the term for the process of terminating translation when a ribosome reaches a stop codon?
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Study Notes
Biodiversity
- Refers to the variety of different species of plants, animals, and microorganisms that live in an ecosystem or on Earth as a whole
- Includes genetic diversity (within species), species diversity (between species), and ecosystem diversity (between ecosystems)
- Importance:
- Maintains ecosystem services (e.g., air and water purification, soil formation)
- Provides goods and services (e.g., food, medicine, recreation)
- Enhances ecosystem resilience to environmental changes
Ecosystems
- A community of living and non-living components interacting with each other in a specific environment
- Components:
- Biotic factors: living organisms (plants, animals, microorganisms)
- Abiotic factors: non-living components (light, temperature, water, soil, etc.)
- Types:
- Terrestrial ecosystems (forests, grasslands, deserts, etc.)
- Freshwater ecosystems (rivers, lakes, wetlands, etc.)
- Marine ecosystems (coral reefs, estuaries, open ocean, etc.)
Conservation
- The preservation, protection, or restoration of the natural environment, ecosystems, and biodiversity
- Goals:
- Protect and preserve natural habitats and ecosystems
- Maintain or restore ecosystem services and functions
- Conserve and manage natural resources sustainably
- Strategies:
- Habitat preservation and restoration
- Species conservation and management
- Sustainable land-use planning and policy
Sustainability
- The ability of a system to maintain its health and productivity over time
- Three pillars:
- Environmental sustainability: maintaining natural resources and ecosystem services
- Social sustainability: promoting social equity and human well-being
- Economic sustainability: ensuring economic viability and stability
- Importance:
- Ensures long-term health and productivity of ecosystems
- Supports human well-being and quality of life
- Mitigates the impacts of environmental degradation and climate change
Population Dynamics
- The study of changes in population size, structure, and distribution over time
- Factors influencing population dynamics:
- Birth and death rates
- Migration and dispersal
- Environmental factors (climate, habitat, resources)
- Types of population growth:
- Exponential growth: rapid increase in population size
- Logistic growth: slow growth, followed by stabilization
- Boom-and-bust cycles: rapid growth, followed by decline
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Description
Test your knowledge of biodiversity, ecosystems, conservation, and sustainability. Learn about the importance of maintaining ecosystem services, and the impact of population dynamics on the environment.
