BIO 1108 Exam 1 and Exam 2 (Actual Exams) | Updated
Questions and Correct Answers | Graded A+ | Brand New
Version!
Question 1
Which of the following is NOT considered a fundamental characteristic of all
living organisms?
A) Reproduction
B) Organization into cells
C) Response to stimuli
D) Ability to photosynthesize
E) Regulation (homeostasis)
Correct Answer: D) Ability to photosynthesize
Rationale: While many living organisms (like plants) photosynthesize,
it is not a universal characteristic of all living things. Animals, fungi,
and many bacteria, for example, do not photosynthesize.
Question 2
The process by which organisms maintain a relatively stable internal
environment is called:
A) Metabolism
B) Evolution
C) Homeostasis
D) Reproduction
E) Adaptation
Correct Answer: C) Homeostasis
Rationale: Homeostasis is the ability of an organism to maintain
stable internal conditions despite changes in its external
environment.
Question 3
Which level of biological organization includes all the populations of different
species living and interacting in a particular area?
A) Population
,B) Organism
C) Ecosystem
D) Community
E) Biosphere
Correct Answer: D) Community
Rationale: A community consists of all the different populations of
species that live and interact in the same area. A population refers
to a single species.
Question 4
What is the correct order of the scientific method steps?
A) Experiment, Hypothesis, Observation, Conclusion, Analysis
B) Observation, Hypothesis, Experiment, Analysis, Conclusion
C) Hypothesis, Experiment, Observation, Analysis, Conclusion
D) Observation, Analysis, Hypothesis, Experiment, Conclusion
E) Hypothesis, Observation, Experiment, Analysis, Conclusion
Correct Answer: B) Observation, Hypothesis, Experiment, Analysis,
Conclusion
Rationale: The generally accepted order of the scientific method
begins with an observation, followed by forming a hypothesis,
designing and conducting an experiment, analyzing the results, and
drawing a conclusion.
Question 5
A proposed explanation for an observation that can be tested is called a:
A) Theory
B) Law
C) Fact
D) Hypothesis
E) Conclusion
Correct Answer: D) Hypothesis
,Rationale: A hypothesis is a testable explanation for a set of
observations, often stated as an "if-then" statement.
Question 6
Which of the following elements is found in the highest percentage in living
organisms?
A) Nitrogen
B) Hydrogen
C) Oxygen
D) Carbon
E) Calcium
Correct Answer: C) Oxygen
Rationale: Oxygen is the most abundant element in living organisms,
primarily due to its presence in water, which makes up a large
portion of living matter.
Question 7
What is the smallest unit of matter that retains an element's chemical
properties?
A) Molecule
B) Cell
C) Atom
D) Proton
E) Neutron
Correct Answer: C) Atom
Rationale: An atom is the smallest unit of an element that still
maintains the chemical identity and properties of that element.
Question 8
Which subatomic particle carries a positive charge?
A) Electron
B) Neutron
C) Proton
, D) Nucleus
E) Ion
Correct Answer: C) Proton
Rationale: Protons are subatomic particles found in the nucleus of an
atom and carry a positive electrical charge.
Question 9
What type of chemical bond involves the sharing of electrons between
atoms?
A) Ionic bond
B) Hydrogen bond
C) Covalent bond
D) Metallic bond
E) Van der Waals force
Correct Answer: C) Covalent bond
Rationale: A covalent bond is formed when two atoms share one or
more pairs of electrons.
Question 10
Which property of water allows insects to walk on its surface?
A) High specific heat
B) Adhesion
C) Cohesion and surface tension
D) Solvent properties
E) Evaporative cooling
Correct Answer: C) Cohesion and surface tension
Rationale: Cohesion (water molecules sticking to each other) and the
resulting high surface tension allow small, light objects like insects
to be supported on the water's surface.
Question 11
A solution with a pH of 2 is considered:
A) Neutral
Questions and Correct Answers | Graded A+ | Brand New
Version!
Question 1
Which of the following is NOT considered a fundamental characteristic of all
living organisms?
A) Reproduction
B) Organization into cells
C) Response to stimuli
D) Ability to photosynthesize
E) Regulation (homeostasis)
Correct Answer: D) Ability to photosynthesize
Rationale: While many living organisms (like plants) photosynthesize,
it is not a universal characteristic of all living things. Animals, fungi,
and many bacteria, for example, do not photosynthesize.
Question 2
The process by which organisms maintain a relatively stable internal
environment is called:
A) Metabolism
B) Evolution
C) Homeostasis
D) Reproduction
E) Adaptation
Correct Answer: C) Homeostasis
Rationale: Homeostasis is the ability of an organism to maintain
stable internal conditions despite changes in its external
environment.
Question 3
Which level of biological organization includes all the populations of different
species living and interacting in a particular area?
A) Population
,B) Organism
C) Ecosystem
D) Community
E) Biosphere
Correct Answer: D) Community
Rationale: A community consists of all the different populations of
species that live and interact in the same area. A population refers
to a single species.
Question 4
What is the correct order of the scientific method steps?
A) Experiment, Hypothesis, Observation, Conclusion, Analysis
B) Observation, Hypothesis, Experiment, Analysis, Conclusion
C) Hypothesis, Experiment, Observation, Analysis, Conclusion
D) Observation, Analysis, Hypothesis, Experiment, Conclusion
E) Hypothesis, Observation, Experiment, Analysis, Conclusion
Correct Answer: B) Observation, Hypothesis, Experiment, Analysis,
Conclusion
Rationale: The generally accepted order of the scientific method
begins with an observation, followed by forming a hypothesis,
designing and conducting an experiment, analyzing the results, and
drawing a conclusion.
Question 5
A proposed explanation for an observation that can be tested is called a:
A) Theory
B) Law
C) Fact
D) Hypothesis
E) Conclusion
Correct Answer: D) Hypothesis
,Rationale: A hypothesis is a testable explanation for a set of
observations, often stated as an "if-then" statement.
Question 6
Which of the following elements is found in the highest percentage in living
organisms?
A) Nitrogen
B) Hydrogen
C) Oxygen
D) Carbon
E) Calcium
Correct Answer: C) Oxygen
Rationale: Oxygen is the most abundant element in living organisms,
primarily due to its presence in water, which makes up a large
portion of living matter.
Question 7
What is the smallest unit of matter that retains an element's chemical
properties?
A) Molecule
B) Cell
C) Atom
D) Proton
E) Neutron
Correct Answer: C) Atom
Rationale: An atom is the smallest unit of an element that still
maintains the chemical identity and properties of that element.
Question 8
Which subatomic particle carries a positive charge?
A) Electron
B) Neutron
C) Proton
, D) Nucleus
E) Ion
Correct Answer: C) Proton
Rationale: Protons are subatomic particles found in the nucleus of an
atom and carry a positive electrical charge.
Question 9
What type of chemical bond involves the sharing of electrons between
atoms?
A) Ionic bond
B) Hydrogen bond
C) Covalent bond
D) Metallic bond
E) Van der Waals force
Correct Answer: C) Covalent bond
Rationale: A covalent bond is formed when two atoms share one or
more pairs of electrons.
Question 10
Which property of water allows insects to walk on its surface?
A) High specific heat
B) Adhesion
C) Cohesion and surface tension
D) Solvent properties
E) Evaporative cooling
Correct Answer: C) Cohesion and surface tension
Rationale: Cohesion (water molecules sticking to each other) and the
resulting high surface tension allow small, light objects like insects
to be supported on the water's surface.
Question 11
A solution with a pH of 2 is considered:
A) Neutral
