Biology Fundamentals
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Biology Fundamentals

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Questions and Answers

Which of the following is NOT a fundamental principle of evolution?

  • Mutation
  • Genetic Engineering (correct)
  • Natural Selection
  • Genetic Drift
  • What type of chemical bond occurs when atoms share electrons?

  • Covalent bond (correct)
  • Hydrogen bond
  • Ionic bond
  • Metallic bond
  • Which of the following is NOT considered an ecosystem service?

  • Water purification by wetlands
  • Regulation of atmospheric temperature by forests
  • Pollination of crops by insects
  • Production of synthetic fertilizers (correct)
  • What is the primary difference between a prokaryotic cell and a eukaryotic cell?

    <p>Prokaryotic cells lack membrane-bound organelles, while eukaryotic cells have them.</p> Signup and view all the answers

    Which of the following is a key characteristic of sustainability?

    <p>Meeting the needs of the present generation without compromising the ability of future generations to meet their own needs.</p> Signup and view all the answers

    Which of the following is NOT a type of wave?

    <p>Gravitational wave</p> Signup and view all the answers

    What is the relationship between the atomic number and the number of protons in an atom?

    <p>The atomic number is the same as the number of protons.</p> Signup and view all the answers

    What is the primary cause of climate change?

    <p>Increased greenhouse gas emissions</p> Signup and view all the answers

    Study Notes

    Biology

    • Cells: The basic units of life, composed of cell membrane, cytoplasm, and genetic material (DNA or RNA)
    • Genetics: Study of heredity, genes, and genetic variation
    • Evolution: Process of change in species over time through natural selection, genetic drift, mutation, and gene flow
    • Ecosystems: Interacting communities of organisms and their environment, including energy flow and nutrient cycling
    • Taxonomy: Classification of living organisms into kingdoms, phyla, classes, orders, families, genera, and species

    Environmental Science

    • Ecosystem Services: Benefits provided by functioning ecosystems, including air and water purification, soil formation, and climate regulation
    • Conservation Biology: Preservation and protection of threatened and endangered species, habitats, and ecosystems
    • Sustainability: Meeting present needs without compromising the ability of future generations to meet their own needs
    • Climate Change: Long-term warming of the planet due to increased greenhouse gas emissions, leading to rising sea levels, altered ecosystems, and extreme weather events
    • Pollution: Contamination of the environment with harmful substances, including air, water, and soil pollution

    Chemistry

    • Atomic Structure: Protons, neutrons, and electrons compose atoms, with electrons orbiting the nucleus
    • Periodic Table: Organized arrangement of elements by their atomic number, electron configuration, and recurring chemical properties
    • Chemical Bonding: Atoms sharing or exchanging electrons to form molecules, including ionic, covalent, and metallic bonds
    • Chemical Reactions: Processes involving the transformation of one or more substances, including reactants, products, and catalysts
    • Acids and Bases: Substances that donate or accept electrons, with pH levels ranging from acidic to basic

    Physics

    • Motion: Objects change position over time, with velocity, acceleration, and force influencing their movement
    • Energy: Ability to do work, with forms including kinetic, potential, thermal, electrical, and chemical energy
    • Waves: Periodic disturbances that transfer energy through a medium, including mechanical, electromagnetic, and quantum waves
    • Forces: Pushes or pulls that cause objects to change their motion, including gravity, friction, and electromagnetism
    • Relativity: Theories of special and general relativity, which describe the nature of space and time

    Biology

    • Cells are the basic units of life, consisting of a cell membrane, cytoplasm, and genetic material (DNA or RNA) that contain hereditary information.
    • Genetics is the study of heredity, genes, and genetic variation, examining how traits are passed down from one generation to the next.
    • Evolution is the process of change in species over time, driven by natural selection, genetic drift, mutation, and gene flow, resulting in adaptations to the environment.
    • Ecosystems are interacting communities of organisms and their environment, encompassing energy flow and nutrient cycling, with each species playing a specific role.
    • Taxonomy is the classification of living organisms into hierarchical categories, including kingdoms, phyla, classes, orders, families, genera, and species, based on their shared characteristics and evolutionary relationships.

    Environmental Science

    • Ecosystem services are the benefits provided by functioning ecosystems, including air and water purification, soil formation, and climate regulation, which are essential for human well-being.
    • Conservation biology aims to preserve and protect threatened and endangered species, habitats, and ecosystems, addressing the impact of human activities on biodiversity.
    • Sustainability involves meeting present needs without compromising the ability of future generations to meet their own needs, requiring a balance between economic, social, and environmental considerations.
    • Climate change is the long-term warming of the planet, primarily caused by increased greenhouse gas emissions, leading to rising sea levels, altered ecosystems, and extreme weather events.
    • Pollution is the contamination of the environment with harmful substances, including air, water, and soil pollution, which can have devastating effects on human health and ecosystems.

    Chemistry

    • Atomic structure consists of protons, neutrons, and electrons, with electrons orbiting the nucleus, and the number of protons determining the element's identity.
    • The periodic table is an organized arrangement of elements by their atomic number, electron configuration, and recurring chemical properties, facilitating the prediction of chemical behavior.
    • Chemical bonding occurs when atoms share or exchange electrons to form molecules, resulting in ionic, covalent, and metallic bonds, which have different properties and strengths.
    • Chemical reactions involve the transformation of one or more substances, with reactants, products, and catalysts playing key roles, and can release or absorb energy.
    • Acids and bases are substances that donate or accept electrons, with pH levels ranging from acidic to basic, and participate in various chemical reactions and biological processes.

    Physics

    • Motion is the change in position of objects over time, influenced by velocity, acceleration, and force, which can be described using kinematic equations and graphs.
    • Energy is the ability to do work, and it comes in various forms, including kinetic, potential, thermal, electrical, and chemical energy, which can be converted from one form to another.
    • Waves are periodic disturbances that transfer energy through a medium, encompassing mechanical, electromagnetic, and quantum waves, which have different properties and applications.
    • Forces are pushes or pulls that cause objects to change their motion, including gravity, friction, and electromagnetism, which can act individually or in combination.
    • Relativity is the theoretical framework describing the nature of space and time, comprising special relativity (time dilation and length contraction) and general relativity (gravity as curvature of spacetime).

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    Quiz about the basics of biology, covering cells, genetics, evolution, ecosystems, and taxonomy.

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