BIO 100 PRACTICE TEST UPDATED QUESTIONS AND ANSWERS
How is discovery-based science different from hypothesis-driven science? - CORRECT
ANSWER✅✅✅Discovery Based science- has the goal of finding new information and serves to form
new hypotheses. Hypothesis Driven science- uses deduction and the scientific method.
What are the steps of the Scientific Method? - CORRECT ANSWER✅✅✅1. Do an observation
2. Ask a question
3. Construct a hypothesis
4. Make a prediction
5. Test the experiment
6. Analyze the results
7. Draw a conclusion
Remember: A hypothesis is an educated guess to your question, must be testable, and can never be
proven!
Are large or small sample sizes more accurate for scientific studies? - CORRECT ANSWER✅✅✅Large
sample sizes are more accurate for scientific studies because it increase the chance of finding a
significant difference and leads to a more precise data.
What is the difference between a hypothesis and a scientific theory? - CORRECT ANSWER✅✅✅A
hypothesis is an explanation that may or may not have undergone scientific testing, while a theory is a
hypothesis that has undergone numerous tests over many years and has accumulated a large body of
evidence in support of the explanation.
What are the six qualities of life? Be able to describe each quality and not just recognize them. -
CORRECT ANSWER✅✅✅1. All living things have cells - Cell is the smallest unit of life. Cell contains all
the material that are necessary for life to exist. Some organisms are unicellular (only one cell) like
bacteria, multicellular (many cells) like human. Human cells have different function like for nerves or
skin.
2. Living things can sense and response to change - Living things response to a stimuli. A stimuli could
include smells (good or bad), taste, sound, heat (touching a hot stove), light or darkness, or gravity.
,- Homeostasis: When an organism responds to changes in order to keep its internal environment the
same.
3. Living things reproduce - Living things must reproduce to ensure that their species survives.
4. Living things have DNA - Living things have DNA because it controls all the characteristics and
activities of an organism.
5. Living things use energy - Organisms takes in energy, converts it to useful forms, and expels energy.
6. Living things grow and develop - Development: Living things change and mature as they grow old over
time. Organisms pass through different stages as they grow.
- Single celled organisms: Grow larger.
- Multi-celled organisms: Grow in number of cells.
- Metamorphosis: Is when organisms have a complete change of body shape. Ex: Capterpillar -> Butterfly
or Tadpole -> Frog.
What is an emergent property? What quality of life does it have to do with? - CORRECT
ANSWER✅✅✅-It's the property where living things become more and more complex as it goes from
cellular level to organ system (Some kind of characteristics comes around when two interest come
together).
-Life requires the ability to grow and reproduce using the information in one's DNA.
Why is the ability to evolve important for living things? - CORRECT ANSWER✅✅✅Living things
evolve to adapt to their surroundings.
How does taxonomy help scientists study life? - CORRECT ANSWER✅✅✅By providing easily
remembered scientific names for organisms. The more features 2 organisms share, the more taxonomic
levels they share. Ranks group to similar organisms.
Be able to list, in order, the taxonomic hierarchy. Which taxonomic category is the most specific and
which is the most general? - CORRECT
ANSWER✅✅✅Domain>Kingdom>Phylum>Class>Order>Family>Genus>Species
, -Domains are most general and species are specific.
What are the three domains that include all living things? - CORRECT ANSWER✅✅✅-Bacteria:
Unicellular, found everywhere, some cause disease in humans, but most are beneficial.
-Archaea: Unicellular, often live in extreme conditions, such as environments that are very hot, salty, or
acidic.
-Eukarya: Unicellular or multicellular, larger (10-100x), more sophisticated cells.
Generally, what does an evolutionary tree tell you about the organisms on it? - CORRECT
ANSWER✅✅✅How organisms are related.
What is the smallest piece of an element that still retains the qualities of the element? - CORRECT
ANSWER✅✅✅Atom
What are the components of an atom? What are the characteristics of each of these components (big
vs. little?, charged?, location?) - CORRECT ANSWER✅✅✅Each Atom is made of even smaller sub-
atomic particles called Protons, Neutrons, and Electrons.
Protons = positive charge
Electrons = negative charge
Neutrons = no charge
-Protons and neutrons have about equal mass.
-Electrons have very little mass.
-Proton and neutron is in the nucleus, where as the electron orbit around the electron shell.
How is discovery-based science different from hypothesis-driven science? - CORRECT
ANSWER✅✅✅Discovery Based science- has the goal of finding new information and serves to form
new hypotheses. Hypothesis Driven science- uses deduction and the scientific method.
What are the steps of the Scientific Method? - CORRECT ANSWER✅✅✅1. Do an observation
2. Ask a question
3. Construct a hypothesis
4. Make a prediction
5. Test the experiment
6. Analyze the results
7. Draw a conclusion
Remember: A hypothesis is an educated guess to your question, must be testable, and can never be
proven!
Are large or small sample sizes more accurate for scientific studies? - CORRECT ANSWER✅✅✅Large
sample sizes are more accurate for scientific studies because it increase the chance of finding a
significant difference and leads to a more precise data.
What is the difference between a hypothesis and a scientific theory? - CORRECT ANSWER✅✅✅A
hypothesis is an explanation that may or may not have undergone scientific testing, while a theory is a
hypothesis that has undergone numerous tests over many years and has accumulated a large body of
evidence in support of the explanation.
What are the six qualities of life? Be able to describe each quality and not just recognize them. -
CORRECT ANSWER✅✅✅1. All living things have cells - Cell is the smallest unit of life. Cell contains all
the material that are necessary for life to exist. Some organisms are unicellular (only one cell) like
bacteria, multicellular (many cells) like human. Human cells have different function like for nerves or
skin.
2. Living things can sense and response to change - Living things response to a stimuli. A stimuli could
include smells (good or bad), taste, sound, heat (touching a hot stove), light or darkness, or gravity.
,- Homeostasis: When an organism responds to changes in order to keep its internal environment the
same.
3. Living things reproduce - Living things must reproduce to ensure that their species survives.
4. Living things have DNA - Living things have DNA because it controls all the characteristics and
activities of an organism.
5. Living things use energy - Organisms takes in energy, converts it to useful forms, and expels energy.
6. Living things grow and develop - Development: Living things change and mature as they grow old over
time. Organisms pass through different stages as they grow.
- Single celled organisms: Grow larger.
- Multi-celled organisms: Grow in number of cells.
- Metamorphosis: Is when organisms have a complete change of body shape. Ex: Capterpillar -> Butterfly
or Tadpole -> Frog.
What is an emergent property? What quality of life does it have to do with? - CORRECT
ANSWER✅✅✅-It's the property where living things become more and more complex as it goes from
cellular level to organ system (Some kind of characteristics comes around when two interest come
together).
-Life requires the ability to grow and reproduce using the information in one's DNA.
Why is the ability to evolve important for living things? - CORRECT ANSWER✅✅✅Living things
evolve to adapt to their surroundings.
How does taxonomy help scientists study life? - CORRECT ANSWER✅✅✅By providing easily
remembered scientific names for organisms. The more features 2 organisms share, the more taxonomic
levels they share. Ranks group to similar organisms.
Be able to list, in order, the taxonomic hierarchy. Which taxonomic category is the most specific and
which is the most general? - CORRECT
ANSWER✅✅✅Domain>Kingdom>Phylum>Class>Order>Family>Genus>Species
, -Domains are most general and species are specific.
What are the three domains that include all living things? - CORRECT ANSWER✅✅✅-Bacteria:
Unicellular, found everywhere, some cause disease in humans, but most are beneficial.
-Archaea: Unicellular, often live in extreme conditions, such as environments that are very hot, salty, or
acidic.
-Eukarya: Unicellular or multicellular, larger (10-100x), more sophisticated cells.
Generally, what does an evolutionary tree tell you about the organisms on it? - CORRECT
ANSWER✅✅✅How organisms are related.
What is the smallest piece of an element that still retains the qualities of the element? - CORRECT
ANSWER✅✅✅Atom
What are the components of an atom? What are the characteristics of each of these components (big
vs. little?, charged?, location?) - CORRECT ANSWER✅✅✅Each Atom is made of even smaller sub-
atomic particles called Protons, Neutrons, and Electrons.
Protons = positive charge
Electrons = negative charge
Neutrons = no charge
-Protons and neutrons have about equal mass.
-Electrons have very little mass.
-Proton and neutron is in the nucleus, where as the electron orbit around the electron shell.
