Biology 121 Exam Review Questions with
Certified Answers
Hierarchy of life order - Answer bio-eco-com-pop-organism-organ syst-organ-tissue-cell-organelle-
molecule-atom /each step causes new properties to emerge as result of interaction among lower level
components
systems biology - Answer model dynamic behavior of a whole biological systems based on a study of
interactions among systems parts
reductionism - Answer complex systems broken down to simpler components that are more
manageable to study
Energy - Answer energy from sunlight-converted to chemical energy by producers-passed to consumers
cell - Answer organisms basic unit of structure and function
eukaryotic cells - Answer contain membrane-enclosed organelles including dna-containing nucleus
prokaryotic cells - Answer lack dna containing nucleus or membrane
DNA - Answer long linear polymer in the nucleus of cell formed from nucleotides and shaped like a
double helix transfers heritable info from parents to offspring
gene expression - Answer conversion of the information encoded in a gene first into messenger RNA and
then to a protein
genomics - Answer study and comparison of genomes within a single species or among different species
positive feedback - Answer Feedback that tends to magnify a process or increase its output. regulation
common to life at all levels which regulate biological systems
, natural selection - Answer the principle that, among the range of inherited trait variations, those that
lead to increased reproduction and survival will most likely be passed on to succeeding generations
inquiry - Answer scientists make observations by collecting data
inductive reasoning - Answer drawing a general conclusion
hypothesis - Answer a proposal intended to explain certain facts or observations
deductive reasoning - Answer predictions that can be used to test hypotheses made from inductive
reasoning
controlled experiments - Answer designed to demonstrate effect of 1 variable by testing control groups
and experimental groups that differ in only that one variable
scientific theory - Answer generated new hypotheses that is supported by large body of evidence
technology - Answer method or device that applies scientific knowledge for some specific purpose that
affects society
molecule - Answer consists of atoms
organelle has - Answer orderely arrangement of molecules
photosynthetic plant cells - Answer contain organelles called chloroplasts
tissue - Answer consists of a group of similar cells
population - Answer set of organisms of the same spieces
Certified Answers
Hierarchy of life order - Answer bio-eco-com-pop-organism-organ syst-organ-tissue-cell-organelle-
molecule-atom /each step causes new properties to emerge as result of interaction among lower level
components
systems biology - Answer model dynamic behavior of a whole biological systems based on a study of
interactions among systems parts
reductionism - Answer complex systems broken down to simpler components that are more
manageable to study
Energy - Answer energy from sunlight-converted to chemical energy by producers-passed to consumers
cell - Answer organisms basic unit of structure and function
eukaryotic cells - Answer contain membrane-enclosed organelles including dna-containing nucleus
prokaryotic cells - Answer lack dna containing nucleus or membrane
DNA - Answer long linear polymer in the nucleus of cell formed from nucleotides and shaped like a
double helix transfers heritable info from parents to offspring
gene expression - Answer conversion of the information encoded in a gene first into messenger RNA and
then to a protein
genomics - Answer study and comparison of genomes within a single species or among different species
positive feedback - Answer Feedback that tends to magnify a process or increase its output. regulation
common to life at all levels which regulate biological systems
, natural selection - Answer the principle that, among the range of inherited trait variations, those that
lead to increased reproduction and survival will most likely be passed on to succeeding generations
inquiry - Answer scientists make observations by collecting data
inductive reasoning - Answer drawing a general conclusion
hypothesis - Answer a proposal intended to explain certain facts or observations
deductive reasoning - Answer predictions that can be used to test hypotheses made from inductive
reasoning
controlled experiments - Answer designed to demonstrate effect of 1 variable by testing control groups
and experimental groups that differ in only that one variable
scientific theory - Answer generated new hypotheses that is supported by large body of evidence
technology - Answer method or device that applies scientific knowledge for some specific purpose that
affects society
molecule - Answer consists of atoms
organelle has - Answer orderely arrangement of molecules
photosynthetic plant cells - Answer contain organelles called chloroplasts
tissue - Answer consists of a group of similar cells
population - Answer set of organisms of the same spieces
