Florida Science Grade 6

Chapter 1: Exploring and Classifying Life

Exploring and Classifying Life

1.
__________ is a trait of all organisms.
A)Binomial nomenclature
B)A variable
C)A hypothesis
D)Homeostasis
2.
Which of these is true of scientific methods?
A)Conclusions are drawn at the beginning of the process.
B)Data can be analyzed in only one way.
C)It is not important to form a hypothesis.
D)The problem needs to be stated at the beginning of the process.
3.
You want to weigh a large dog. Which SI measurement unit would you use?
A)millimeters
B)kilograms
C)liters
D)kilometers
4.
Which person devised an animal classification system 2,000 years ago?
A)Aristotle
B)LaMarck
C)Pasteur
D)Urey
5.
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 a dichotomous key.
C)It is part of scientific methods.
D)It is a reaction.
6.
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
7.
You want to measure the length of a mouse's tail. Which SI measurement unit would you use?
A)milliliters
B)kilometers
C)centimeters
D)kilograms
8.
When a scientist classifies a newly discovered plant, its __________ is studied.
A)biogenesis
B)variable
C)phylogeny
D)transpiration
9.
Which person developed a system of organism classification in use today?
A)Oparin
B)Linnaeus
C)Marconi
D)Einstein
10.
In order to draw conclusions about a scientific problem, which is true?
A)A scientist never revises the hypothesis.
B)A scientist can accept the hypothesis.
C)A scientist will always reject the hypothesis.
D)A scientist will choose whether or not to form a hypothesis.
11.
What is the process in which new organisms replace those that die?
A)reproduction
B)photosynthesis
C)phylogeny
D)homeostasis
12.
What is the length of time an organism is expected to live?
A)homeostasis
B)stimulus
C)a life span
D)a scientific method
13.
Which of these is a tool used to identify organisms?
A)a stimulus
B)a control
C)a dichotomous key
D)a hypothesis
14.
The theory that supposes that living things came from nonliving things is __________.
A)phylogeny
B)mitosis
C)biogenesis
D)spontaneous generation
15.
How do many-celled organisms grow?
A)The cells use energy from the Sun.
B)Bacteria invade the cells.
C)Only one of its cells gets bigger.
D)They make more cells.
16.
When a bright light shines in your eyes, you close your eyelids quickly. What is the bright light?
A)a control
B)a predictor
C)a classification
D)a stimulus
17.
A prediction that can be tested is __________.
A)a dichotomous key
B)a genus
C)a hypothesis
D)a variable
18.
The part of an experiment that can change is __________.
A)a zygote
B)a law
C)a variable
D)a theory
19.
The first word in a two-word name of an organism identifies its __________.
A)color
B)species
C)habitat
D)genus
20.
A system used to name species is __________.
A)spontaneous generation
B)binomial nomenclature
C)polygenic inheritance
D)scientific methods
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