Bio 100 Exam 1 Assessement Questions And 100% Solved Solutions.
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Course
Bio 100
Institution
Bio 100
What is Biology? - Answer study of living organisms.
What type of science is bio? - Answer Natural Science, occurs naturally in nature not man made. Others are math, physics,or geology.
Five steps of scientific method? - Answer 1) Observe
2) Hypothesize
3) Make prediction
4) Tes...
Bio 100 Exam 1 Assessement Questions
And 100% Solved Solutions.
What is Biology? - Answer study of living organisms.
What type of science is bio? - Answer Natural Science, occurs naturally in nature not man made. Others
are math, physics,or geology.
Five steps of scientific method? - Answer 1) Observe
2) Hypothesize
3) Make prediction
4) Test
5) Draw a conclusion
Observe - Answer Look for interesting patterns or cause-and-effect relationships
Formulate a hypothesis - Answer Hypothesis: a proposed explanation for observed phenomena
Null hypothesis: a hypothesis that states a lack of relationship between two factors; stated as a negative
Ex. "Echinacea has no effect on the duration and severity of cold symptoms"
Hypothesis must be falsifiable to be scientific
Make a prediction - Answer o "If...Then..."
o Must be testable
Conduct an experiment - Answer o An experiment that makes it possible to decisively determine
whether a particular hypothesis is correct
o Need experimental groups, placebo, control groups, treatment, variables etc.
, Hypothesis vs Law and Principle - Answer o Hypothesis: a proposed explanation for observed
phenomena
o Theory: a hypothesis that has been repeatedly tested and supported
o Law (Principle): a theory that has been repeatedly tested and supported
Comparative method - Answer Special case of the scientific method
o Ex: Seals are more closely related to dogs than to cats (can't really test anything)
o Compares patterns of similarity between seals, dogs, and cats
o Cannot be tested with traditional experiments
Placebo - Answer a substance that has no effect, used as a control in testing new drugs
Atoms - Answer Atoms are the subunit of all life including molecules
There are 92 naturally occurring atoms
Consist of:
Nucleus (Protons [+] and Neutrons[0])
Electrons (Negative charge; rotate around nucleus in "shells")
4 atoms of life. make up 95% of all life - Answer carbon
oxygen
nitrogen
hydrogen
(COHN - carbon oxygen hydrogen nitrogen)
atomic number - Answer number of protons in nucleas
mass number - Answer protons plus nuetrons
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