CCU Bio 121 Exam 1 Questions With All
Correct Answers
hypothesis Correct answer-an educated guess, lowest in forms of reputation
theories in science Correct answer-years of testing, with no disapproval or no evidence so far
OQHPTCP Correct answer-observations, questions, hypothesis, prediction, testing, conclusion,
publish
IMRAD Correct answer-introduction, methods, results, discussions
RCT Correct answer-randomized control trial
RCDBT Correct answer-randomized control double blind trial
gold standard for experiments Correct answer-RCDBT is
natural experiments Correct answer-naturally occurring with no manipulation from humans
example of natural experiment Correct answer-covid
example of theory in science Correct answer-theory of gravity- just a theory because its the current
understanding of gravity
Darwins observation 1 Correct answer-organisms reproduce faster than necessary to replace
themselves
Darwins observation 2 Correct answer-organisms vary, and that variation is often inherited
Darwins observation 3 Correct answer-some variants survive or reproduce better than others
Darwin concluded Correct answer-if only some variants survive or reproduce, then the next gen
will resemble the successful ones
importance of evolution Correct answer-all living things are related, lessons learned in one species
apply to others
classification 1 Correct answer-domain
classification 2 Correct answer-kingdom
classification 3 Correct answer-phylum
classification 4 Correct answer-class mammalia
classification 5 Correct answer-order carnivora
classification 6 Correct answer-family canidae
, classification 7 Correct answer-genus canis
classification 8 Correct answer-species lupus
Carl Woese Correct answer-three domain based on r RNA (eukarya, bacteria, archaea)
CHON Correct answer-carbon, hydrogen, oxygen, nitrogen
Oxygen, O Correct answer-65%
Carbon, C Correct answer-18.5%
Hydrogen, H Correct answer-9.5%
Nitrogen, N Correct answer-3.3%
Atoms Correct answer-protons, neutrons, electrons
protons and neutrons Correct answer-found in the nucleus
electrons Correct answer-orbit the nucleus
atomic number Correct answer-protons
atomic mass Correct answer-number of protons and neutrons
isotopes Correct answer-atoms that have the same atomic number, but different atomic weights
radiosiotopes Correct answer-radioactive isotope, usually used for x-rays
# electrons Correct answer-# protons
electron shell Correct answer-an energy level of electrons at a characteristic average distance from
the nucleus of an atom
valence electrons Correct answer-electrons in the outermost shell
unpaired valence electrons Correct answer-react with other atoms
how do atoms fill their outer shells? Correct answer-they form chemical bonds
types of chemical bonds Correct answer-covalent, ionic, hydrogen
covalent bonds Correct answer-shared pairs of electrons, strongest bond
pic of covalent bond Correct answer->>
polar covalent bonds Correct answer-occur between two atoms that differ in electronegativity (O)
hydrogen bonds Correct answer-occur between polar molecules, partial negative and partial
positive, weak bonds
Correct Answers
hypothesis Correct answer-an educated guess, lowest in forms of reputation
theories in science Correct answer-years of testing, with no disapproval or no evidence so far
OQHPTCP Correct answer-observations, questions, hypothesis, prediction, testing, conclusion,
publish
IMRAD Correct answer-introduction, methods, results, discussions
RCT Correct answer-randomized control trial
RCDBT Correct answer-randomized control double blind trial
gold standard for experiments Correct answer-RCDBT is
natural experiments Correct answer-naturally occurring with no manipulation from humans
example of natural experiment Correct answer-covid
example of theory in science Correct answer-theory of gravity- just a theory because its the current
understanding of gravity
Darwins observation 1 Correct answer-organisms reproduce faster than necessary to replace
themselves
Darwins observation 2 Correct answer-organisms vary, and that variation is often inherited
Darwins observation 3 Correct answer-some variants survive or reproduce better than others
Darwin concluded Correct answer-if only some variants survive or reproduce, then the next gen
will resemble the successful ones
importance of evolution Correct answer-all living things are related, lessons learned in one species
apply to others
classification 1 Correct answer-domain
classification 2 Correct answer-kingdom
classification 3 Correct answer-phylum
classification 4 Correct answer-class mammalia
classification 5 Correct answer-order carnivora
classification 6 Correct answer-family canidae
, classification 7 Correct answer-genus canis
classification 8 Correct answer-species lupus
Carl Woese Correct answer-three domain based on r RNA (eukarya, bacteria, archaea)
CHON Correct answer-carbon, hydrogen, oxygen, nitrogen
Oxygen, O Correct answer-65%
Carbon, C Correct answer-18.5%
Hydrogen, H Correct answer-9.5%
Nitrogen, N Correct answer-3.3%
Atoms Correct answer-protons, neutrons, electrons
protons and neutrons Correct answer-found in the nucleus
electrons Correct answer-orbit the nucleus
atomic number Correct answer-protons
atomic mass Correct answer-number of protons and neutrons
isotopes Correct answer-atoms that have the same atomic number, but different atomic weights
radiosiotopes Correct answer-radioactive isotope, usually used for x-rays
# electrons Correct answer-# protons
electron shell Correct answer-an energy level of electrons at a characteristic average distance from
the nucleus of an atom
valence electrons Correct answer-electrons in the outermost shell
unpaired valence electrons Correct answer-react with other atoms
how do atoms fill their outer shells? Correct answer-they form chemical bonds
types of chemical bonds Correct answer-covalent, ionic, hydrogen
covalent bonds Correct answer-shared pairs of electrons, strongest bond
pic of covalent bond Correct answer->>
polar covalent bonds Correct answer-occur between two atoms that differ in electronegativity (O)
hydrogen bonds Correct answer-occur between polar molecules, partial negative and partial
positive, weak bonds
