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Scientific Method & Living Vs. Nonliving Flashcards | StudBud
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Scientific Method & Living Vs. Nonliving
Scientific Method & Living Vs. Nonliving
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Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
What is the probable independent variable based on the following graph
Temperature
25° C
Number of Hours
Number of Bacteria
2
What would most likely result in an experiment being invalid?
The conclusion was not based on the data collected
The sample size produce too much data
Too many scientists duplicated the experiment
The hypothesis was rejected
3
What can be inferred based on the graph...
All species of bacteria should grow within 2 hours
All bacteria grow best a the same temperature
The bacteria are all related
Bacteria grown in colder temperatures takes longer
4
What is the best description for a hypothesis?
The basis for what data to collect when designing an experi
The process of making careful observations
The facts collected from an experiment make it up
The results should be used to formulate your hypothesis
5
Scientific thinking or reasoning describes...
inquiry
metabolism
hypothesis
maintaining homeostasis
6
What is the most likely hypothesis of this experiment? If enzymes function...
with gastric protease, then it will equal intestinal acid
at specific pH levels, then they will have higher activity
at a pH of 14, then the rate will increase
at a higher rate of activity, then they will grow
7
Which diagram best represents multicellular organization
3
2
1
4
8
Hypothesis should be written...
as If, then statements
as questions
as conclusions
9
All cells are able to continue living because of their ability to...
Produce hormones
Produce food
Excrete wastes
Produce offspring
10
What is the independent variable of this experimental set up?
Essential minerals
Potassium
Plant growth
Bubble production
11
Conducting medicinal studies, half the group gets a sugar pill the other the new drug, sugar is
the dependent variable
the independent variable
a control group
an experimental group
12
What is the purpose of a control in an experiment?
Another word for what you are testing in an experiment
To have more data
To show you have power over the experiment
To give something to compare to
13
Interpret the graph... Gastric Protease works best at a pH of...
12
0
9
3
14
Maintaining internal balance or stability is known as...
Homeostasis
Independent Variable
Dependent Variable
Metabolism
15
If organisms are in the same genus that means it must also be...
In the same kingdom but different phylums
In the same kingdom but could be different species
in the same species but different kingdoms
In the same phylum but different kingdoms
16
Conducting medicinal studies, half the group gets a sugar pill the other the new drug, sugar is
a dependent variable
a placebo
an experimental group
a nutrition study
17
All things enter AND exit a cell to...
Maintain homeostasis
Remove waste
Reproduce
Use energy
18
Which statement best describes a controlled experiment...
It shows the effect of a dependent on an independent
It eliminates using dependent variables
It avoids the use of variables
It tests only one independent variable
19
Things are most closely related if they belong in the same...
Family
Genus and Species
Class and Species
Kingdom and Genus
20
All of the chemical activities of an organism are defined as...
Development
Metabolism
Reproductive Cycle
Circulation
21
What does this diagram best represent?
Maintaining Homeostasis
Organelles
Tissues
Excretion
22
Reproduction is necessary for....
All multicellular organisms not unicellular
A species not an individual
Nonliving things
An individual not a species
23
What is NOT an appropriate first step when designing an experiment?
Using what is already known
Completing a data table of expected results
Having discussions with other scientists
Doing research in a library
24
Organs are to Organ Systems as _________________ are to Cells
DNA
Nuclei
Tissues
Organelles
25
What is the dependent variable of this experiment?
Temperature
Bacterial Growth at Three Temperatures
Number of Bacteria
Number of Hours
26
Simple organisms have what structures that function like our organ systems
Homeostasis
Organelles
Tissues
Nucleus
27
What two elements do all Organic compounds contain?
Carbon and Hydrogen
Carbon and Oxygen
Hydrogen and Oxygen
Carbon and Nitrogen
28
What is one of the best ways to improve upon any experiment?
Repeat the experiment multiple times
Test multiple variables at a time
Complete the data table with your expected results
Keep your results to yourself
29
X =
Organelles
Nucleus
Tissues
Heart
30
At what pH value do both enzymes work at?
0
Half way up the Y axis
12
5
