Life Science: Life's Structure and Function, Book A

Chapter 1: Exploring and Classifying Life

Exploring and Classifying Life

1
__________ is a trait of all organisms.
A)A hypothesis
B)Homeostasis
C)A variable
D)Binomial nomenclature
2
You want to find out how much water an aquarium tank can hold. Which SI measurement unit would you use?
A)tonnes
B)grams
C)meters
D)liters
3
What is the process in which new organisms replace those that die?
A)homeostasis
B)phylogeny
C)photosynthesis
D)reproduction
4
A prediction that can be tested is __________.
A)a dichotomous key
B)a variable
C)a hypothesis
D)a genus
5
Which of these is a tool used to identify organisms?
A)a hypothesis
B)a dichotomous key
C)a control
D)a stimulus
6
A system used to name species is __________.
A)scientific methods
B)binomial nomenclature
C)polygenic inheritance
D)spontaneous generation
7
The first word in a two-word name of an organism identifies its __________.
A)color
B)species
C)habitat
D)genus
8
Which of these is true of scientific methods?
A)The problem needs to be stated at the beginning of the process.
B)It is not important to form a hypothesis.
C)Conclusions are drawn at the beginning of the process.
D)Data can be analyzed in only one way.
9
The theory that supposes that living things came from nonliving things is __________.
A)spontaneous generation
B)biogenesis
C)phylogeny
D)mitosis
10
What is the smallest part of an organism that carries on the functions of life?
A)phylogeny
B)homeostasis
C)fats
D)a cell
11
How do many-celled organisms grow?
A)Bacteria invade the cells.
B)They make more cells.
C)Only one of its cells gets bigger.
D)The cells use energy from the Sun.
12
Which of these scientists studies animals?
A)a geologist
B)a zoologist
C)a botanist
D)a physicist
13
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 an SI measurement.
B)It is part of scientific methods.
C)It is a dichotomous key.
D)It is a reaction.
14
Which person developed a system of organism classification in use today?
A)Oparin
B)Einstein
C)Linnaeus
D)Marconi
15
You want to weigh a large dog. Which SI measurement unit would you use?
A)liters
B)millimeters
C)kilometers
D)kilograms
16
When a scientist classifies a newly discovered plant, its __________ is studied.
A)transpiration
B)variable
C)phylogeny
D)biogenesis
17
When a bright light shines in your eyes, you close your eyelids quickly. What is the bright light?
A)a classification
B)a control
C)a stimulus
D)a predictor
18
Which of these is true?
A)A theory can explain multiple hypotheses.
B)Once they are stated, theories never change.
C)Good theories are defined before observations are made.
D)A valid theory answers all questions.
19
You want to measure the length of a mouse's tail. Which SI measurement unit would you use?
A)kilometers
B)milliliters
C)kilograms
D)centimeters
20
Which person devised an animal classification system 2,000 years ago?
A)Urey
B)Aristotle
C)Pasteur
D)LaMarck