WorksheetsCh. 1 and Intro to Bio
Total questions: 32
Worksheet time: 16mins
Name
Class
Date
1.
What are the smallest units of living things?
a)
organisms
b)
cells
c)
ecosystems
d)
populations
2.
To observe a LIVING organism a biologist would use what tool?
a)
Transmission Electron Microscope
b)
Scanning Electron Microscope
c)
Compound Light Microscope
d)
Cell Culturing
3.
Which of the following is a characteristic of all living things?
a)
All reproduce
b)
All are made of cells
c)
All are made of DNA
d)
All choices are correct
4.
The variable that is deliberately changed in an experiment is known as what?
a)
Dependent Variable
b)
Independent Variable
c)
Control Group
d)
Controlled Variable
5.
What variable is the measurement in an experiment?
a)
Dependent Variable
b)
Independent Variable
c)
Control Group
d)
Controlled Variable
6.
A hypothesis is only useful if
a)
it can be proven with observations only
b)
it can't be tested
c)
it can be tested with an experiment
d)
it becomes a�theory
7.
A hypothesis is developed after
a)
thorough background research
b)
an experiment
c)
once a conclusion is formed
d)
a control group
8.
The idea that live comes from nonliving things is known as what?
a)
variable data
b)
metabolism
c)
homeostasis
d)
spontaneous generation
9.
What does homeostasis mean?
a)
the internal balance of living things
b)
the universal genetic code
c)
spontaneous generation
d)
metabolism
10.
What are the independent and dependent variables for Redi's experiment?
a)
IV = uncovered jars & DV�= �maggots on meat
b)
IV = maggots on meat & DV = covered �jars
c)
IV = Curved neck & DV = microorganisms present
d)
IV = covered jars & DV = maggots on meat
11.
What did Spallanzani do in his experiment that Needham did not?
a)
Heated the gravy
b)
Sealed the flask
c)
Boiled the gravy
d)
Made a curve neck flask
12.
Which group is left under normal conditions and used for comparison in an experiment?
a)
control group
b)
experimental group
c)
independent variable
d)
dependent variable
13.
How many variables are tested in a controlled experiment?
a)
4
b)
3
c)
2
d)
1
14.
Which is not a measurement used in biology?
a)
gram
b)
milliliter
c)
centimeter
d)
inch
15.
Biology is the study of what?
a)
organisms
b)
bacteria
c)
cells
d)
all choices are correct
16.
Which level of organization includes all the others?
a)
ecosystem
b)
community
c)
population
d)
molecules
17.
What was Pasteur's independent variable?
a)
gauze covered jars
b)
sealed flask
c)
curved neck flask
d)
microorganisms present
18.
Living organisms that reproduce asexually produce
a)
offspring with different DNA than the parent
b)
offspring with the same DNA as the parent
c)
no offspring
d)
offspring that reproduce sexually
19.
What is a group of organisms of one type living in the same area called?
a)
ecosystem
b)
community
c)
organism
d)
population
20.
The control and experimental groups are designed to be identical.
a)
TRUE
b)
FALSE
21.
On a microscope, what structure adjusts the amount of light that passes through the specimen?
a)
Eyepiece
b)
Stage
c)
Diaphragm
d)
Coarse Adjustment Knob
22.
What structure on a microscope is used to adjust the height of the stage, and bring an object on low power into view?
a)
Arm and base
b)
Coarse Adjustment Knob
c)
Eyepiece
d)
Diaphragm
23.
A hypothesis that is NOT supported by the data collected during an experiment
a)
often predicts a different observation.
b)
is known as an inaccurate forecast.
c)
is discarded.
d)
is retested.
24.
Which of the following is NOT a part of the scientific method?
a)
Observing
b)
Hypothesizing
c)
Experimenting
d)
Guessing
25.
All of the following are held constant in Redi's experiment on spontaneous generation, EXCEPT?
a)
Type of meat
b)
Type of jars
c)
Gauze covering that keeps flies away from meat
d)
Temperature at which the jars were stored
26.
The work of a scientist usually begins with
a)
testing a hypothesis
b)
careful observations
c)
creating experiments
d)
drawing conclusions
27.
Which of the following includes all living things on Earth?
a)
Biosphere
b)
Community
c)
Population
d)
Environment
28.
A controlled experiment allows the scientist to isolate and test
a)
a mass of information
b)
several variables
c)
a single independent variable
d)
a conclusion
29.
Living things
a)
require energy to carry on life processes.
b)
have the ability to reproduce.
c)
are composed of cells.
d)
All of the above.
30.
Multicellular organisms reproduce
a)
asexually
b)
through budding
c)
sexually
d)
through cloning
31.
What was the independent variable in the brine shrimp lab?
a)
Percent of water
b)
Number of brine shrimp
c)
Percentage of salt in the water
d)
Number of egg shells
32.
What was the control group in the brine shrimp lab?
a)
0% dish
b)
10% dish
c)
3% dish
d)
The number of brine shrimp living
100 %
