Introduction to Biology: Key Concepts and
Scientific Principles Exam Quizzes Latest 2026
With Answers
What is science?
Science is a process of gaining information that is rigorous, fluid, and the best method we have
to gain knowledge, limited by what we can study.
What is biology?
Biology is the study of life, covering various subcategories such as botany, biochemistry,
anatomy, physiology, and ecology.
What is the Central Dogma of Biology?
The Central Dogma of Biology describes the flow of genetic information from DNA to RNA to
protein.
What are the levels of organization in biology?
The levels of organization include atom, molecule, cell, tissue, organ, organ system, multicellular
organism, population, species, community, ecosystem, and biosphere.
What is the smallest unit of life?
The cell is the smallest unit of life.
What is a species?
A species is a group of organisms of the same type that are capable of interbreeding.
What is a population?
, A population is a group of organisms of the same species living in a given area.
What is a community in biological terms?
A community consists of interacting populations of different species.
What is an ecosystem?
An ecosystem is a community and its nonliving environment.
What is the biosphere?
The biosphere is the entire surface of the Earth, including all living and nonliving components.
What principle underlies all scientific inquiry?
Natural causality is the principle that all events can be traced to natural causes.
What is the scientific method?
The scientific method is a rigorous process for scientific inquiry that includes observation,
questioning, hypothesis formulation, prediction, experimentation, and conclusion.
What is the first step of the scientific method?
The first step is the observation of a specific phenomenon.
What follows after making an observation in the scientific method?
The observation leads to a question.
What is the role of a hypothesis in the scientific method?
A hypothesis is formulated based on previous observations and is offered as an answer to the
question.
Scientific Principles Exam Quizzes Latest 2026
With Answers
What is science?
Science is a process of gaining information that is rigorous, fluid, and the best method we have
to gain knowledge, limited by what we can study.
What is biology?
Biology is the study of life, covering various subcategories such as botany, biochemistry,
anatomy, physiology, and ecology.
What is the Central Dogma of Biology?
The Central Dogma of Biology describes the flow of genetic information from DNA to RNA to
protein.
What are the levels of organization in biology?
The levels of organization include atom, molecule, cell, tissue, organ, organ system, multicellular
organism, population, species, community, ecosystem, and biosphere.
What is the smallest unit of life?
The cell is the smallest unit of life.
What is a species?
A species is a group of organisms of the same type that are capable of interbreeding.
What is a population?
, A population is a group of organisms of the same species living in a given area.
What is a community in biological terms?
A community consists of interacting populations of different species.
What is an ecosystem?
An ecosystem is a community and its nonliving environment.
What is the biosphere?
The biosphere is the entire surface of the Earth, including all living and nonliving components.
What principle underlies all scientific inquiry?
Natural causality is the principle that all events can be traced to natural causes.
What is the scientific method?
The scientific method is a rigorous process for scientific inquiry that includes observation,
questioning, hypothesis formulation, prediction, experimentation, and conclusion.
What is the first step of the scientific method?
The first step is the observation of a specific phenomenon.
What follows after making an observation in the scientific method?
The observation leads to a question.
What is the role of a hypothesis in the scientific method?
A hypothesis is formulated based on previous observations and is offered as an answer to the
question.
