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Ch. 1 Biology Intro with Scientific Method & Microscope Flashcards | StudBud
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Ch. 1 Biology Intro with Scientific Method & Microscope
Ch. 1 Biology Intro with Scientific Method & Microscope
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Ch. 1
Flashcards
31 cards
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Practice quiz
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Questions
31
Answers
1
Cell theory states that all cells must come from pre-existing cells. This is:
a law
a theory
a hypothesis
2
The SI units for measuring length, mass and volume (in order) are....
milliliter, meter, kilometer
meters, kilograms, liters
meters, liters, grams
kilograms, meters, liters
3
What is the tested factor in an experiment that might affect the outcome?
dependent variable
independent variable
4
Organisms rely on both negative feedback processes and behavior to maintain…
a balanced diet
sweating and fever
homeostasis
an endothermic temperature
5
What is the difference between a theory and a hypothesis?
A theory is an inference and a hypothesis is a prediction.
A theory is a fact and a hypothesis is a guess.
A theory is well tested & a hypothesis is a testable explanation.
A theory is well tested and a hypothesis is just a guess.
6
SI units for temperature?
Celsius
Fahrenheit (nope)
7
The process by which organisms keep their internal conditions fairly constant is called _____.
biodiversity
equilibrial fluid
maintaining homeostasis
analysis
8
The field that applies science to crime investigation is called ____.
forensics
ethics
pseudoscience
9
Which temperature would be most comfortable? (20C = 68F)
0 degrees Celsius
40 degrees Celsius
25 degrees Celsius
10
"If I drink or consume 5 mg of caffeine, then my typing speed will increase by 10 words a minute." This is a:
Law
Theory
Hypothesis
11
A well-tested explanation or hypothesis that unifies a broad range of observations is a
guess
inference
theory
hypothesis
12
What is the SI unit for measuring time?
grams
meters
Celsius
Seconds
13
If you gave cats new food to give them sharper claws and the other group regular food, which is the experimental group?
cats that receive regular food
cats that receive new food
14
Robert Koch stated that diseases are caused by germs after MANY experiments supported this idea. This is an example of:
a hypothesis
a theory
a Law
15
If you gave cats new food to give them sharper claws and the other group regular food, which is the independent variable
cats that got new food
cats that got regular food
the new food
sharper claws
16
Conservation of energy states that energy is neither created nor destroyed. Is this a law, theory or hypothesis?
Law
hypothesis
theory
17
What unit is used for length in the SI units?
celsius
gram
meter
liter
18
Information gathered from observing a plant that grows 3 cm over a two-week period results in
conclusions
analysis
data
experimentation
19
Hypothesis, Theory or Law? ...All living organisms are made of cells.
Theory
Neither
None of these
Hypothesis
20
The SI units used when measuring volume?
milliliters
seconds
meters
grams
21
What is the total magnification using the low power objective on OUR microscopes?
None of these
100X
400X
40X (this one!)
22
SERENDIPITY means,
different from others
Working hard and finding something good
Finding something valuable by chance
Good luck with money
23
Which is NOT a characteristic of life.
Change over time - Evolve
Need energy for metabolism
Maintain constant body temperature
Made of one or more cells
24
If you gave cats new food to give them sharper claws and the other group regular food, which is the dependent variable
sharper claws
new food
regular food
25
what is the SI base units for length
molecules
kilogram
meter
moles
26
What is NOT a characteristic of life
Grow and develop
Have DNA
Respond to their Environment
Move within their Environment
27
The SI units for measuring length, mass and volume (in order) are....
kilograms, meters, liters
meters, liters, grams
milliliter, meter, kilometer
meters, kilograms, liters
28
A controlled experiment allows the scientist to isolate and test…
a single variable
two variables at one time
the independent & constant
the dependent and control
29
During an experiment, which factors are observed and measured?
constants
independent variable
dependent variable
control
30
Qualitative Data is an ___________ while Quantitative Data is recorded in ___________.
prediction, opinion
opinion, numbers
numbers, opinion
guess, numbers
31
If you gave cats new food to give them sharper claws and the other group regular food, which is the control group
regular food cats
new food cats
