questions with correct answers
A hypothesis is a statement that
A) can be changed throughout the experiment - VERIFIED ANSWER✔✔-A) can be changed throughout
the exoeriment
Where are the most reliable scientific results published? - VERIFIED ANSWER✔✔-In peer reviewed
scientific journals
Observations used as scientific evidence should NOT include - VERIFIED ANSWER✔✔-anecdotal
evidence
All of the following re true of a scientific hypothesis EXCEPT - VERIFIED ANSWER✔✔-It is an opinion
Which of the following places the steps of the scientific process in the correct order? - VERIFIED
ANSWER✔✔-Read literature-> questions-> experiment -> hypothesis -> conclusions
Based on previous published data and some preliminary experiments done in my lab, I hypothesize that
a drug called "shrinkase" will inhibit the growth of a particular type of cancerous tumor. What is my next
step in the scientific process? - VERIFIED ANSWER✔✔-Determine what my control and experimental,
groups will be
Evidence that is not based on a systematic scientific study is known as __________ evidence - VERIFIED
ANSWER✔✔-anecdotal
You have the following known facts: smoking causes accumulation of materials in the lungs, thereby
decreasing oxygen-absorbing capability of the lungs. Long-term smoking causes more accumulation of
materials in the lungs. Decreased lung capacity increases the workload of the heart. Which of the
following hypotheses can you make from these observations? - VERIFIED ANSWER✔✔-Long-term
smokers have poorer heart health than non-smokers
,In a controlled experiment, the control and experimental groups differ in the - VERIFIED ANSWER✔✔-
independent variable
A placebo is given to the: - VERIFIED ANSWER✔✔-control group
What is the importance of a placebo? - VERIFIED ANSWER✔✔-It allows the researcher to treat control
and experimental groups differently while allowing them to believe they are being treated the same.
What a the difference between a hypothesis and a theory? - VERIFIED ANSWER✔✔-A hypothesis is an
assumption made before any research or testing, while a theory is an explanation already supported by
data.
Would it be possible for a scientist to bias a scientific study? - VERIFIED ANSWER✔✔-Yes, if the scientist
chose specific individuals to include in the study
Scientific studies within a single ethnic population - VERIFIED ANSWER✔✔-Demonstrate cause and
effect for that population only
Which of the following lists the terms from simplest to most complex - VERIFIED ANSWER✔✔-cells,
tissues, organs, organ systems, organism
The smallest unit of life is a(n) - VERIFIED ANSWER✔✔-cell
Which of the following is matched incorrectly? - VERIFIED ANSWER✔✔-gene - organelle
Which of the following examples is not correctly matched with a correct term? - VERIFIED ANSWER✔✔-
A desert with little water, high heat, sand, cacti, and some mammals- community
Scientists were studying temperature selection amongst pregnant big brown bats. What would be the
best control group for this study? - VERIFIED ANSWER✔✔-female bats that were not pregnant
In science, a theory - VERIFIED ANSWER✔✔-encompasses many hypotheses.
, The purpose of a control group in an experiment is - VERIFIED ANSWER✔✔-for comparison to the other
test groups.
Clayborns favorite butterfly - VERIFIED ANSWER✔✔-Imperiled schaus' swallowtail butterfly
Biology is - VERIFIED ANSWER✔✔-the scientific study of life
Recorded observations are called - VERIFIED ANSWER✔✔-Data
Hypothesis - VERIFIED ANSWER✔✔-A proposed explanation for a set of observations. A valid hypothesis
must be testable and falsifiable.
Scientific outcomes - VERIFIED ANSWER✔✔-Building knowledge
Solving problems
Developing new technologies
Benefitting society
A theory is - VERIFIED ANSWER✔✔-A comprehensive and well-substantiated explanation, much broader
in scope than a hypothesis
A fact is - VERIFIED ANSWER✔✔-A piece of information considered to be effectively based on all current
evidence.
Gold standard - VERIFIED ANSWER✔✔-Double-blind placebo controlled study
Test subjects know which group is which and researchers know which group is which - VERIFIED
ANSWER✔✔-Not blind
Test subjects don't know which group is which and researchers know which group is which - VERIFIED
ANSWER✔✔-Single blind