BIL 150 MALLERY 2025/2026: TESTS 1-4
QUESTIONS AND ANSWERS (GRADED
A+)
an RNA molecule that has catalytic activity? - ANSWER-is a ribozyme
living organisms capable of synthesizing all their need organic molecules using CO2 as
its sole carbon sources are classified as? - ANSWER-autotrophs
the atmosphere inside the Miller and Urey volcanic apparatus was described chemically
as? - ANSWER-a reducing atmosphere with little reactive oxygen molecules
ribosomes are a universally present organelle in all cells and are primarily composed of
which of the following molecules? - ANSWER-RNA and proteins
the formation of new elements of the periodic table occurred by the fusion of preexisting
combinations of proteins and neutrons during the Big Band and within dying stars
known as Supernova? - ANSWER-true
an experimental study is conducted to determine whether or not 10 milligrams of the
drug somatostatin can overcome the effect of dwarfism in humans. The change in
height of the participants in the clinical trial represent the? - ANSWER-dependent
variable
an inquiry based research approach in biology includes? - ANSWER-choose this
answer if all of the above aspects on inquiry based research in biology
a stable, non-radioactive element is known to have an atomic number of 12, therefore
its atomic mass would be? - ANSWER-24
the half life of radioactive carbon 14C is 5,730 years. A sample of fossilized wood is
shown to contain only 6.35% radioactive 14C compared with the amount of radioactive
14C in living wood samples of today, thus the age of the fossilized would be closest to
which of the following? - ANSWER-22,920
of the following known facts which would provide some of the strongest evidence for a
common ancestry of all known cellular life? - ANSWER-the universality of the genetic
code
the type of error occurring in scientific experiments that is due to the intrinsic
measurement and/or resolution of an instrument is referred to as? - ANSWER-random
error
, Robert Hazen's lab proposed that minerals might have played a role in allowing early
primitive organic molecules to react with each other chemically forming more complex
molecules primarily by? - ANSWER-by providing scaffolding support to facilitate
concentration
one of the most effective ways of presenting numerical data from a clinical trial would
likely be a? - ANSWER-table
the type of chemical reaction shown in the diagram below is most likely a? - ANSWER-a
condensation reaction
homochiral polymeric molecule, such as proteins that occur in living cells today, are
composed of? - ANSWER-only one of two possible optical isomers of amino acids
thermophilic bacteria, which might have been an initial LUGA, have been hypothesized
to have arisen? - ANSWER-around deep ocean hydrothermal vents
the type of chemical reaction acting upon the polymer shown in the figure below might
best be described as? - ANSWER-a hydrolysis reaction
which of the following is likely to be a step within the scientific method in biology? -
ANSWER-all of these can be a part of the scientific method
the scientific method involves the construction of knowledge based upon observation,
testing, and measurement. Identify among these statements the one that can NOT be
experimentally based? - ANSWER-choose this answer if all the above statements are
experimentally based
a hypothesis that has been confirmed through repeated experimental tests over a very
long period of time may be referred to as? - ANSWER-a theory
which of the following phrases better describes the results of natural selection? -
ANSWER-the changes in inherited characteristics of a population
the age of mammals is estimated to have begun between 145 and 65 million years ago
by using the technique of Molecular Clock Dating which compares DNA sequence
differences as species diverge? - ANSWER-true
a primary reason for the increase in federal funding to the NH (National Institutes of
Health) budget in the early 1980s was most likely due to? - ANSWER-the emergence of
the Human disease AIDS
the energy source used by Stanley Miller in his volcanic experiments was? - ANSWER-
electricity stimulating lightning
QUESTIONS AND ANSWERS (GRADED
A+)
an RNA molecule that has catalytic activity? - ANSWER-is a ribozyme
living organisms capable of synthesizing all their need organic molecules using CO2 as
its sole carbon sources are classified as? - ANSWER-autotrophs
the atmosphere inside the Miller and Urey volcanic apparatus was described chemically
as? - ANSWER-a reducing atmosphere with little reactive oxygen molecules
ribosomes are a universally present organelle in all cells and are primarily composed of
which of the following molecules? - ANSWER-RNA and proteins
the formation of new elements of the periodic table occurred by the fusion of preexisting
combinations of proteins and neutrons during the Big Band and within dying stars
known as Supernova? - ANSWER-true
an experimental study is conducted to determine whether or not 10 milligrams of the
drug somatostatin can overcome the effect of dwarfism in humans. The change in
height of the participants in the clinical trial represent the? - ANSWER-dependent
variable
an inquiry based research approach in biology includes? - ANSWER-choose this
answer if all of the above aspects on inquiry based research in biology
a stable, non-radioactive element is known to have an atomic number of 12, therefore
its atomic mass would be? - ANSWER-24
the half life of radioactive carbon 14C is 5,730 years. A sample of fossilized wood is
shown to contain only 6.35% radioactive 14C compared with the amount of radioactive
14C in living wood samples of today, thus the age of the fossilized would be closest to
which of the following? - ANSWER-22,920
of the following known facts which would provide some of the strongest evidence for a
common ancestry of all known cellular life? - ANSWER-the universality of the genetic
code
the type of error occurring in scientific experiments that is due to the intrinsic
measurement and/or resolution of an instrument is referred to as? - ANSWER-random
error
, Robert Hazen's lab proposed that minerals might have played a role in allowing early
primitive organic molecules to react with each other chemically forming more complex
molecules primarily by? - ANSWER-by providing scaffolding support to facilitate
concentration
one of the most effective ways of presenting numerical data from a clinical trial would
likely be a? - ANSWER-table
the type of chemical reaction shown in the diagram below is most likely a? - ANSWER-a
condensation reaction
homochiral polymeric molecule, such as proteins that occur in living cells today, are
composed of? - ANSWER-only one of two possible optical isomers of amino acids
thermophilic bacteria, which might have been an initial LUGA, have been hypothesized
to have arisen? - ANSWER-around deep ocean hydrothermal vents
the type of chemical reaction acting upon the polymer shown in the figure below might
best be described as? - ANSWER-a hydrolysis reaction
which of the following is likely to be a step within the scientific method in biology? -
ANSWER-all of these can be a part of the scientific method
the scientific method involves the construction of knowledge based upon observation,
testing, and measurement. Identify among these statements the one that can NOT be
experimentally based? - ANSWER-choose this answer if all the above statements are
experimentally based
a hypothesis that has been confirmed through repeated experimental tests over a very
long period of time may be referred to as? - ANSWER-a theory
which of the following phrases better describes the results of natural selection? -
ANSWER-the changes in inherited characteristics of a population
the age of mammals is estimated to have begun between 145 and 65 million years ago
by using the technique of Molecular Clock Dating which compares DNA sequence
differences as species diverge? - ANSWER-true
a primary reason for the increase in federal funding to the NH (National Institutes of
Health) budget in the early 1980s was most likely due to? - ANSWER-the emergence of
the Human disease AIDS
the energy source used by Stanley Miller in his volcanic experiments was? - ANSWER-
electricity stimulating lightning
