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Questions and Answers
What is the term for the variety of species, genes, and ecosystems?
What is the term for the variety of species, genes, and ecosystems?
What is the term for the role and position of a species within its environment?
What is the term for the role and position of a species within its environment?
What is the term for the molecule containing genetic information?
What is the term for the molecule containing genetic information?
What is the term for the group of different species living in a specific area?
What is the term for the group of different species living in a specific area?
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What is the term for the thread-like structures containing genes?
What is the term for the thread-like structures containing genes?
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What is the term for the transfer of energy from one trophic level to the next?
What is the term for the transfer of energy from one trophic level to the next?
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What is the term for the physical expression of an organism's genotype?
What is the term for the physical expression of an organism's genotype?
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What is the term for the units of heredity that carry information from one generation to the next?
What is the term for the units of heredity that carry information from one generation to the next?
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What is the term for the study of the interactions between organisms and their environment?
What is the term for the study of the interactions between organisms and their environment?
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What is the term for the essential services provided by ecosystems?
What is the term for the essential services provided by ecosystems?
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Study Notes
Ecology
Definition and Scope
- Study of the interactions between organisms and their environment
- Examines the relationships between living organisms and their physical environment
Levels of Organization
- Ecosystem: community of living and non-living components interacting in a specific environment
- Community: group of different species living in a specific area
- Population: group of individuals of the same species living in a specific area
- Organism: individual living thing
- Ecosystem Services: essential services provided by ecosystems, e.g. air and water purification, soil formation, climate regulation
Ecological Concepts
- Biodiversity: variety of species, genes, and ecosystems
- Ecological Niche: the role and position of a species within its environment
- Adaptation: characteristics that enable organisms to survive and reproduce in their environment
- Energy Flow: transfer of energy from one trophic level to the next
- Trophic Levels: levels of energy transfer in a food chain (producer, primary consumer, secondary consumer, etc.)
Genetics
Definition and Scope
- Study of heredity, genes, and genetic variation
- Examines the transmission of traits from one generation to the next
Key Concepts
- DNA (Deoxyribonucleic Acid): molecule containing genetic information
- Genes: units of heredity that carry information from one generation to the next
- Chromosomes: thread-like structures containing genes
- Traits: characteristics of an organism, e.g. eye color, height
- Genotype: genetic makeup of an organism
- Phenotype: physical expression of an organism's genotype
Genetic Principles
- Mendel's Laws: laws of inheritance, e.g. segregation, independent assortment
- Dominance and Recessiveness: relationship between alleles (different forms of a gene)
- Punnett Squares: diagrams used to predict offspring genotypes and phenotypes
- Heritability: proportion of variation in a trait due to genetics
Ecology
Definition and Scope
- Ecology examines the interactions between organisms and their environment, including living and non-living components.
Levels of Organization
- An ecosystem is a community of living and non-living components interacting in a specific environment.
- A community consists of different species living in a specific area.
- A population is a group of individuals of the same species living in a specific area.
- An organism is an individual living thing.
- Ecosystem services include essential services like air and water purification, soil formation, and climate regulation.
Ecological Concepts
- Biodiversity refers to the variety of species, genes, and ecosystems.
- An ecological niche is the role and position of a species within its environment.
- Adaptation refers to characteristics that enable organisms to survive and reproduce in their environment.
- Energy flow involves the transfer of energy from one trophic level to the next in a food chain.
- Trophic levels are the levels of energy transfer in a food chain, including producers, primary consumers, secondary consumers, and more.
Genetics
Definition and Scope
- Genetics is the study of heredity, genes, and genetic variation, examining the transmission of traits from one generation to the next.
Key Concepts
- DNA (Deoxyribonucleic Acid) is a molecule containing genetic information.
- Genes are units of heredity that carry information from one generation to the next.
- Chromosomes are thread-like structures containing genes.
- Traits are characteristics of an organism, such as eye color or height.
- Genotype is the genetic makeup of an organism, while phenotype is the physical expression of an organism's genotype.
Genetic Principles
- Mendel's Laws are the laws of inheritance, including segregation and independent assortment.
- Dominance and recessiveness describe the relationship between alleles (different forms of a gene).
- Punnett Squares are diagrams used to predict offspring genotypes and phenotypes.
- Heritability is the proportion of variation in a trait due to genetics.
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Description
Test your knowledge of ecology, the study of interactions between organisms and their environment, including levels of organization and ecosystems.