BSC 108 Exam 1questions and
answers
What is biology?✔✔The study of life
What are the 3 domains?✔✔Eukarya, Bacteria, Archae
What are the 4 kingdoms in eukarya?✔✔Kingdom Amimalia, Kingdom Plantae,
Kingdom Fungi, Kingdom Protista
What are the 7 properties of life?✔✔they have order, they regulate themselves, they
grow and develop, they use energy, they respond to the environment, they
reproduce, population evolve
What defines living?✔✔It has cells
What are the common themes of biology?✔✔pervade all of biology, will make sense
to you in the future
What is the scientific method?✔✔Make an observation, Ask a question, Make a
hypothesis, Draw a conclusion, Conduct a experiment, Report results
When did the scientific method started?✔✔Started with the outbreak of cholera
London 1854
What is a hypothesis?✔✔A tentative explanation for an observation
What are the components of a good hypothesis?✔✔Repeated trials, good track of
data
What is the difference between a hypothesis and a prediction?✔✔A prediction is a
guess what might happen based on observation.
A hypothesis is a possible explanation for a observation or problem that can further
be tested by experimentation. (more general)
What is observation?✔✔The recording of data
What is control?✔✔Constant and unchanging
What is a theory?✔✔A much broader in scope than a hypothesis, can be changed
but unlikely
What are the limits of science?✔✔It is not the only way to understand nature and
cannot address every question posed by man
, What is an atom?✔✔It is the smallest unit of an element that has all its properties
What is a proton, neutron, and electron?✔✔A proton is a positive charged atom, a
neutron is a no charged atom, and a electron is a negative charged atom
What is an atom composed of?✔✔protons, neutrons, and electrons
What is 1 proton and neutron equal to? and electron?✔✔1 proton and neutron can
equal to 1 dalton. An electron is negligible
What is an ion?✔✔An atom or molecule with a net electric charge due to the loss of
gain or looses its amount of electron
What is the difference between an ion and isotope?✔✔An atom is an ion when it
gains or losses electrons
An atom is an isotope when it has the same number of protons, but a different
number of neutrons
What is the association between isotopes and fossils?✔✔to calculate half life in
fossils, you must determine the number of isotopes
What is energy?✔✔The capacity to do work and make a change in matter
What is a neutral atom?✔✔When the number of electrons are equal to the number of
protons
What is a trace element?✔✔elements that are essential for life
What are the 4 most important trace elements? (include symbol and %)✔✔Oxygen
O 65%
Carbon C 18.5%
Hydrogen H 9.5%
Nitrogen N 3.3%
What are 8 other important trace elements? (include symbol)✔✔sodium Na
potassium K
iron Fe
magnesium Mg
calcium Ca
chlorine Cl
phosphorus P
sulfur S
What is a radioactive isotope?✔✔The nucleus decays, giving off particles and
energy
answers
What is biology?✔✔The study of life
What are the 3 domains?✔✔Eukarya, Bacteria, Archae
What are the 4 kingdoms in eukarya?✔✔Kingdom Amimalia, Kingdom Plantae,
Kingdom Fungi, Kingdom Protista
What are the 7 properties of life?✔✔they have order, they regulate themselves, they
grow and develop, they use energy, they respond to the environment, they
reproduce, population evolve
What defines living?✔✔It has cells
What are the common themes of biology?✔✔pervade all of biology, will make sense
to you in the future
What is the scientific method?✔✔Make an observation, Ask a question, Make a
hypothesis, Draw a conclusion, Conduct a experiment, Report results
When did the scientific method started?✔✔Started with the outbreak of cholera
London 1854
What is a hypothesis?✔✔A tentative explanation for an observation
What are the components of a good hypothesis?✔✔Repeated trials, good track of
data
What is the difference between a hypothesis and a prediction?✔✔A prediction is a
guess what might happen based on observation.
A hypothesis is a possible explanation for a observation or problem that can further
be tested by experimentation. (more general)
What is observation?✔✔The recording of data
What is control?✔✔Constant and unchanging
What is a theory?✔✔A much broader in scope than a hypothesis, can be changed
but unlikely
What are the limits of science?✔✔It is not the only way to understand nature and
cannot address every question posed by man
, What is an atom?✔✔It is the smallest unit of an element that has all its properties
What is a proton, neutron, and electron?✔✔A proton is a positive charged atom, a
neutron is a no charged atom, and a electron is a negative charged atom
What is an atom composed of?✔✔protons, neutrons, and electrons
What is 1 proton and neutron equal to? and electron?✔✔1 proton and neutron can
equal to 1 dalton. An electron is negligible
What is an ion?✔✔An atom or molecule with a net electric charge due to the loss of
gain or looses its amount of electron
What is the difference between an ion and isotope?✔✔An atom is an ion when it
gains or losses electrons
An atom is an isotope when it has the same number of protons, but a different
number of neutrons
What is the association between isotopes and fossils?✔✔to calculate half life in
fossils, you must determine the number of isotopes
What is energy?✔✔The capacity to do work and make a change in matter
What is a neutral atom?✔✔When the number of electrons are equal to the number of
protons
What is a trace element?✔✔elements that are essential for life
What are the 4 most important trace elements? (include symbol and %)✔✔Oxygen
O 65%
Carbon C 18.5%
Hydrogen H 9.5%
Nitrogen N 3.3%
What are 8 other important trace elements? (include symbol)✔✔sodium Na
potassium K
iron Fe
magnesium Mg
calcium Ca
chlorine Cl
phosphorus P
sulfur S
What is a radioactive isotope?✔✔The nucleus decays, giving off particles and
energy
