2025 BIO 121 FINAL EXAM|ACTUAL EXAM TESTBANK
WITH 300+ QUESTIONS AND CORRECT DETAILED
ANSWERS|BRAND NEW UPDATE |A+GRADE ASSURED
Element - answerA substance that is composed of only one type of atom
Following a scientific method, which of the following is the correct order of steps? -
answerObservation → Hypothesis → Experiment → Analysis → Conclusion → Communicate
results
Atoms become more stable when they form compounds because - answertheir outer
orbitals become filled when they form compounds
,Which of these provides evidence of the common ancestry of all life? - answernear
universality of the genetic code
Which statement about ecological organization is correct? - answerA population is part of a
community
All organic compounds contain the element - answerCarbon
Use the info in the graph to answer the question: which of the following claims is best
supported by the graph? - answerMore earthworms are found in the soil in spring than in
fall
Which of the following is true of carbon? - answerIt can form both polar and nonpolar
bonds.
,Freddie wanted to determine the effects of a new fertilizer on the growth of tomato plants.
He grew five tomato plants in five containers, each having a different concentration of
fertilizer. Each plant is potted in the same type of soil and has the same amount of light.
What part of the experiment did Freddie overlook? - answerthe control
Which of the following characteristics is responsible for the complexity and variety of
organic molecules? - answerthe chemical versatility of carbon atoms
Which of the following characteristics of an atom determines the number and kind of binds
it can form? - answerThe number of particles in the valence shell
Ion - answeran atom that has gained or lost one or more electrons
A water molecule is polar because its hydrogen and oxygen atoms - answerdo not share
electrons equally
, Use earthworm graph: The data can best be used to address which of the following
questions? - answerWhat is the impact of plowing soil on the number of earthworms?
Which of the following is the correct order of organization of structures in living things,
from single to most complex? - answerCells, tissues, organs, organ system
Polar molecules such as water have - answerboth negative and positive poles
Research indicates that ibuprofen, a drug used to relieve inflammation and pain, is a
mixture of two enantiomers; what are enantiomers? - answermolecules that are mirror
images of each other
Cotton-topped tamarins are small primates with tufts of long white hair on their heads.
While studying these creatures, researchers noticed that males with longer hair get more
opportunities to mate and father more offspring. Which of the following questions would
best test the hypothesis that having longer hair is adaptive in these males? - answerTo
determine if hair length is heritable
WITH 300+ QUESTIONS AND CORRECT DETAILED
ANSWERS|BRAND NEW UPDATE |A+GRADE ASSURED
Element - answerA substance that is composed of only one type of atom
Following a scientific method, which of the following is the correct order of steps? -
answerObservation → Hypothesis → Experiment → Analysis → Conclusion → Communicate
results
Atoms become more stable when they form compounds because - answertheir outer
orbitals become filled when they form compounds
,Which of these provides evidence of the common ancestry of all life? - answernear
universality of the genetic code
Which statement about ecological organization is correct? - answerA population is part of a
community
All organic compounds contain the element - answerCarbon
Use the info in the graph to answer the question: which of the following claims is best
supported by the graph? - answerMore earthworms are found in the soil in spring than in
fall
Which of the following is true of carbon? - answerIt can form both polar and nonpolar
bonds.
,Freddie wanted to determine the effects of a new fertilizer on the growth of tomato plants.
He grew five tomato plants in five containers, each having a different concentration of
fertilizer. Each plant is potted in the same type of soil and has the same amount of light.
What part of the experiment did Freddie overlook? - answerthe control
Which of the following characteristics is responsible for the complexity and variety of
organic molecules? - answerthe chemical versatility of carbon atoms
Which of the following characteristics of an atom determines the number and kind of binds
it can form? - answerThe number of particles in the valence shell
Ion - answeran atom that has gained or lost one or more electrons
A water molecule is polar because its hydrogen and oxygen atoms - answerdo not share
electrons equally
, Use earthworm graph: The data can best be used to address which of the following
questions? - answerWhat is the impact of plowing soil on the number of earthworms?
Which of the following is the correct order of organization of structures in living things,
from single to most complex? - answerCells, tissues, organs, organ system
Polar molecules such as water have - answerboth negative and positive poles
Research indicates that ibuprofen, a drug used to relieve inflammation and pain, is a
mixture of two enantiomers; what are enantiomers? - answermolecules that are mirror
images of each other
Cotton-topped tamarins are small primates with tufts of long white hair on their heads.
While studying these creatures, researchers noticed that males with longer hair get more
opportunities to mate and father more offspring. Which of the following questions would
best test the hypothesis that having longer hair is adaptive in these males? - answerTo
determine if hair length is heritable
