Exploring and Classifying Life
Practice Test
1.
Which of these is true?
a.
Once they are stated, theories never change.
b.
Good theories are defined before observations are made.
c.
A theory can explain multiple hypotheses.
d.
A valid theory answers all questions.
Hint
2.
A prediction that can be tested is __________.
a.
a variable
b.
a hypothesis
c.
a dichotomous key
d.
a genus
Hint
3.
What is the smallest part of an organism that carries on the functions of life?
a.
fats
b.
homeostasis
c.
phylogeny
d.
a cell
Hint
4.
When a scientist classifies a newly discovered plant, its __________ is studied.
a.
variable
b.
phylogeny
c.
transpiration
d.
biogenesis
Hint
5.
You want to find out how much water an aquarium tank can hold. Which SI measurement unit would you use?
a.
grams
b.
meters
c.
tonnes
d.
liters
Hint
6.
Which person devised an animal classification system 2,000 years ago?
a.
Aristotle
b.
Urey
c.
LaMarck
d.
Pasteur
Hint
7.
When you touch a hot pan on the stove with your hand, you quickly move your hand away. How do you describe your hand's movement?
a.
It is a dichotomous key.
b.
It is an SI measurement.
c.
It is part of scientific methods.
d.
It is a reaction.
Hint
8.
The theory that supposes that living things came from nonliving things is __________.
a.
spontaneous generation
b.
phylogeny
c.
mitosis
d.
biogenesis
Hint
9.
Which category is the largest in the organism classification system?
a.
a species
b.
a kingdom
c.
a hierarchy
d.
a genus
Hint
10.
In order to draw conclusions about a scientific problem, which is true?
a.
A scientist will choose whether or not to form a hypothesis.
b.
A scientist can accept the hypothesis.
c.
A scientist will always reject the hypothesis.
d.
A scientist never revises the hypothesis.
Hint
11.
The part of an experiment that can change is __________.
a.
a theory
b.
a law
c.
a zygote
d.
a variable
Hint
12.
Which of these is a tool used to identify organisms?
a.
a dichotomous key
b.
a hypothesis
c.
a stimulus
d.
a control
Hint
13.
What is the process in which new organisms replace those that die?
a.
photosynthesis
b.
reproduction
c.
phylogeny
d.
homeostasis
Hint
14.
Which of these scientists studies animals?
a.
a physicist
b.
a botanist
c.
a geologist
d.
a zoologist
Hint
15.
Which person developed a system of organism classification in use today?
a.
Einstein
b.
Marconi
c.
Linnaeus
d.
Oparin
Hint
16.
A system used to name species is __________.
a.
polygenic inheritance
b.
binomial nomenclature
c.
spontaneous generation
d.
scientific methods
Hint
17.
What is the length of time an organism is expected to live?
a.
a scientific method
b.
a life span
c.
homeostasis
d.
stimulus
Hint
18.
Which scientist's work led to the theory of biogenesis?
a.
Carolus Linnaeus
b.
Gregor Mendel
c.
Louis Pasteur
d.
Edward Jenner
Hint
19.
You want to measure the length of a mouse's tail. Which SI measurement unit would you use?
a.
kilometers
b.
kilograms
c.
centimeters
d.
milliliters
Hint
20.
__________ is a trait of all organisms.
a.
A variable
b.
A hypothesis
c.
Homeostasis
d.
Binomial nomenclature
Hint
