Key Concepts in Biology
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Key Concepts in Biology

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Questions and Answers

What is biology?

The science that studies living organisms.

What defines an organism?

Anything that possesses all the characteristics of life.

What does organization refer to in living things?

Orderly structure shown by living things.

What is development in biology?

<p>The process of change that occurs during an organism's life.</p> Signup and view all the answers

What is growth in the context of living organisms?

<p>Increase in the amount of living material and formation of new structures.</p> Signup and view all the answers

What is reproduction?

<p>The process of producing offspring.</p> Signup and view all the answers

What does response mean in biology?

<p>A reaction to a stimulus.</p> Signup and view all the answers

What is a species?

<p>A group of similar organisms that can breed and produce fertile offspring.</p> Signup and view all the answers

What is a stimulus?

<p>A change in an organism's surroundings that causes the organism to react.</p> Signup and view all the answers

What is adaptation?

<p>Inherited characteristic that improves an organism's ability to survive and reproduce.</p> Signup and view all the answers

What does homeostasis refer to?

<p>Regulation of an organism's internal environment to maintain conditions needed for life.</p> Signup and view all the answers

What is science?

<p>Organized way of using evidence to learn about the natural world.</p> Signup and view all the answers

What is a law in scientific terms?

<p>Summarizing statement of observed experimental facts.</p> Signup and view all the answers

What is a theory in science?

<p>Well-tested explanation that makes sense of a variety of scientific observations.</p> Signup and view all the answers

What is peer review?

<p>A process in which scientists evaluate each other's work.</p> Signup and view all the answers

What are ethics in a scientific context?

<p>The moral principles and values held by humans.</p> Signup and view all the answers

What is inference?

<p>Assumption based on prior experience.</p> Signup and view all the answers

What is observation?

<p>Orderly, direct information gathering about a natural phenomenon.</p> Signup and view all the answers

What is the scientific method?

<p>A series of steps followed to solve problems.</p> Signup and view all the answers

What is an experiment?

<p>A procedure carried out under controlled conditions to test a fact or theory.</p> Signup and view all the answers

What is a hypothesis?

<p>A testable prediction.</p> Signup and view all the answers

What is a constant in an experiment?

<p>Variable that is not changed.</p> Signup and view all the answers

What is a control group?

<p>The group that does not receive the experimental treatment.</p> Signup and view all the answers

What is data in scientific research?

<p>Information gathered from observations.</p> Signup and view all the answers

What is a dependent variable?

<p>The factor that is being measured in an experiment.</p> Signup and view all the answers

What is an independent variable?

<p>Factor in an experiment that researchers manipulate.</p> Signup and view all the answers

What is an experimental group?

<p>The group that is exposed to the treatment.</p> Signup and view all the answers

What is the metric system?

<p>A decimal system of measurement based on physical standards.</p> Signup and view all the answers

What does SI stand for in terms of measurements?

<p>Le Système International d'Unités.</p> Signup and view all the answers

Study Notes

Key Concepts in Biology

  • Biology: The scientific study of living organisms, focusing on their structure, function, growth, and interactions.
  • Organism: Any entity that exhibits all characteristics of life, such as organization, reproduction, and response to environmental changes.

Fundamental Characteristics of Life

  • Organization: Living things exhibit an orderly structure, which is essential for functioning.
  • Development: The process through which organisms change and become more complex over their lifetimes.
  • Growth: Refers to a quantitative increase in living material and the formation of new structures.

Reproductive and Adaptive Processes

  • Reproduction: The biological process through which organisms produce offspring, ensuring species survival.
  • Response: The ability of an organism to react to stimuli from its environment, demonstrating sensitivity and adaptability.
  • Adaptation: Inherited traits that enhance an organism's ability to thrive in specific environments.

Homeostasis and Internal Regulation

  • Homeostasis: The mechanisms that maintain a stable internal environment essential for life processes, such as temperature and pH balance.

Scientific Framework

  • Science: An organized method of investigating natural phenomena using evidence, leading to a systematic body of knowledge.
  • Law: A well-substantiated description of observed phenomena that has been repeatedly tested and widely accepted.
  • Theory: A robust explanation developed through extensive testing and validation of many observations.

Research and Methodology

  • Peer Review: A scrutiny process where other scientists evaluate an experiment's procedures and results to ensure reliability.
  • Scientific Method: A structured approach to problem-solving encompassing observation, hypothesis formulation, testing, and conclusion.

Data and Measurement

  • Observation: The systematic gathering of direct information about natural occurrences.
  • Data: Collected information that arises from observations, used for analysis during experiments.

Experimental Design Elements

  • Hypothesis: A testable prediction that can be supported or refuted through experimentation.
  • Variables: Factors in an experiment include:
    • Independent Variable: The factor manipulated to observe its effect.
    • Dependent Variable: The factor that is measured, expected to change in response to the independent variable.
    • Constants: Variables that are kept unchanged throughout an experiment for validity.

Experiment Group Types

  • Control Group: The baseline group that does not receive the experimental treatment.
  • Experimental Group: The group subjected to the treatment of the independent variable to observe effects.

Measurement Systems

  • Metric System: A decimal-based system of measurement that simplifies unit conversion.
  • SI (International System of Units): The globally accepted measurement system used in scientific research, facilitating standardization across disciplines.

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Description

Explore the fundamental concepts of biology, including the characteristics of life, the processes of reproduction and adaptation, and the organization of living organisms. This quiz will challenge your understanding of how these elements contribute to the existence and evolution of life on Earth.

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