Podcast
Questions and Answers
What is the primary function of mitochondria in a cell?
What is the primary function of mitochondria in a cell?
Which of the following is an example of a biotic factor in an ecosystem?
Which of the following is an example of a biotic factor in an ecosystem?
What is the study of the interactions between organisms and their environment?
What is the study of the interactions between organisms and their environment?
What is the term for the sequence of DNA that codes for a specific trait?
What is the term for the sequence of DNA that codes for a specific trait?
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Who is credited with introducing the concept of natural selection?
Who is credited with introducing the concept of natural selection?
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What is the term for the study of the structure, function, and behavior of cells?
What is the term for the study of the structure, function, and behavior of cells?
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Study Notes
Branches of Biology
- Botany: study of plants
- Zoology: study of animals
- Microbiology: study of microorganisms
- Ecology: study of interactions between organisms and their environment
- Molecular Biology: study of biological molecules and their interactions
Cell Biology
- Cell: basic structural and functional unit of life
- Cell membrane: semi-permeable membrane that separates cell from environment
- Cytoplasm: jelly-like substance inside cell membrane
- Nucleus: control center of cell where DNA is stored
- Mitochondria: organelles responsible for energy production
Genetics
- DNA (Deoxyribonucleic acid): molecule that contains genetic information
- Genes: sequences of DNA that code for specific traits
- Chromosomes: thread-like structures made up of DNA and proteins
- Heredity: passing of traits from parents to offspring
- Inheritance patterns: autosomal dominant, autosomal recessive, X-linked
Evolution
- Theory of evolution: organisms change over time through natural selection
- Charles Darwin: introduced concept of natural selection
- Fossil record: evidence of evolutionary changes over time
- Comparative anatomy: study of similarities and differences between organisms
- Homologous structures: structures that have similar origins but different functions
Ecosystems
- Ecosystem: community of organisms and their environment
- Biotic factors: living components of ecosystem (plants, animals, microorganisms)
- Abiotic factors: non-living components of ecosystem (light, temperature, water)
- Energy flow: movement of energy from one organism to another
- Nutrient cycling: movement of nutrients through ecosystem
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Description
Test your knowledge of the fundamental branches and concepts of biology, from botany to molecular biology.
