Bio 100 First Exam UPDATED ACTUAL
Exam Questions and CORRECT Answers
Nature of Science - CORRECT ANSWER - The systematic way scientists study the
natural world using observation, experimentation, and reasoning.
Scientific Method - CORRECT ANSWER - A structured approach to answering questions
that includes observation, question, hypothesis, experiment, data collection & analysis,
conclusion, and communication of results.
Hypothesis - CORRECT ANSWER - A testable explanation based on observations.
Theory - CORRECT ANSWER - A well-substantiated explanation that incorporates facts,
laws, and tested hypotheses (e.g., Cell Theory, Evolution).
Law - CORRECT ANSWER - A statement describing consistent natural phenomena (e.g.,
Law of Gravity).
Organization - CORRECT ANSWER - Cells form the basic unit of life.
Metabolism - CORRECT ANSWER - The ability to acquire and use energy (e.g.,
photosynthesis, respiration).
Homeostasis - CORRECT ANSWER - Maintaining internal balance (e.g., body
temperature regulation).
Growth & Development - CORRECT ANSWER - Increase in size and complexity.
Reproduction - CORRECT ANSWER - Ability to produce offspring (asexual vs. sexual).
, Response to Stimuli - CORRECT ANSWER - Reacting to the environment (e.g., plants
growing toward light).
Evolution - CORRECT ANSWER - Genetic change over generations through natural
selection.
Elements - CORRECT ANSWER - Fundamental substances (C, H, O, N make up 96% of
life).
Atoms - CORRECT ANSWER - Basic unit of matter (protons, neutrons, electrons).
Molecules - CORRECT ANSWER - Two or more atoms bonded together.
Ions - CORRECT ANSWER - Atoms with a charge due to electron loss/gain.
Covalent Bonds - CORRECT ANSWER - Sharing electrons (e.g., H₂O, CO₂).
Ionic Bonds - CORRECT ANSWER - Transfer of electrons between atoms (e.g., NaCl).
Hydrogen Bonds - CORRECT ANSWER - Weak attractions between molecules (e.g.,
DNA strands, water).
Cohesion & Adhesion - CORRECT ANSWER - Water sticks to itself (cohesion) and other
surfaces (adhesion).
High Specific Heat - CORRECT ANSWER - Stabilizes temperatures in organisms and
ecosystems.
Exam Questions and CORRECT Answers
Nature of Science - CORRECT ANSWER - The systematic way scientists study the
natural world using observation, experimentation, and reasoning.
Scientific Method - CORRECT ANSWER - A structured approach to answering questions
that includes observation, question, hypothesis, experiment, data collection & analysis,
conclusion, and communication of results.
Hypothesis - CORRECT ANSWER - A testable explanation based on observations.
Theory - CORRECT ANSWER - A well-substantiated explanation that incorporates facts,
laws, and tested hypotheses (e.g., Cell Theory, Evolution).
Law - CORRECT ANSWER - A statement describing consistent natural phenomena (e.g.,
Law of Gravity).
Organization - CORRECT ANSWER - Cells form the basic unit of life.
Metabolism - CORRECT ANSWER - The ability to acquire and use energy (e.g.,
photosynthesis, respiration).
Homeostasis - CORRECT ANSWER - Maintaining internal balance (e.g., body
temperature regulation).
Growth & Development - CORRECT ANSWER - Increase in size and complexity.
Reproduction - CORRECT ANSWER - Ability to produce offspring (asexual vs. sexual).
, Response to Stimuli - CORRECT ANSWER - Reacting to the environment (e.g., plants
growing toward light).
Evolution - CORRECT ANSWER - Genetic change over generations through natural
selection.
Elements - CORRECT ANSWER - Fundamental substances (C, H, O, N make up 96% of
life).
Atoms - CORRECT ANSWER - Basic unit of matter (protons, neutrons, electrons).
Molecules - CORRECT ANSWER - Two or more atoms bonded together.
Ions - CORRECT ANSWER - Atoms with a charge due to electron loss/gain.
Covalent Bonds - CORRECT ANSWER - Sharing electrons (e.g., H₂O, CO₂).
Ionic Bonds - CORRECT ANSWER - Transfer of electrons between atoms (e.g., NaCl).
Hydrogen Bonds - CORRECT ANSWER - Weak attractions between molecules (e.g.,
DNA strands, water).
Cohesion & Adhesion - CORRECT ANSWER - Water sticks to itself (cohesion) and other
surfaces (adhesion).
High Specific Heat - CORRECT ANSWER - Stabilizes temperatures in organisms and
ecosystems.
