Unit 1 Homework Key. Flashcards
all living things have structures with specific functions. Which characteristic of life best describes this?
Displays orginization
all living things will increase in mass and develop parts with different specific abilities. which characteristic of life best describes this?
maintains homeostasis
all living things increase in mass and develop parts with different specific abilities. which characteristic of life best describes this?
grows and develops
all living things utilize or consume something as a fuel in order to survive. Which characterisitic of life best describes this?
requires energy
the cells of living things are made up of molecules that always contain which element
carbon
all living things are made up of the same basic building block of life. which characteristic of life best describes this?
made up of one or more cells
all living things inherit adaptations that help them to survive. which characteristic of life best describes this?
evolves
all living things have reactions to internal and external conditions that help them to survive. which characteristic of life best describes this?
responds to stimuli
all living things produce offspring to pass along traits from one generation to the next. which characteristic of life best describes this?
reproduction
which of the following is an example of direct measurement? density volume length area all of the above
length
which SI based unit would be used to describe a physical characteristic of a dolphin?
kilogram
The SI system is based on powers of
10
which describes this statement: "the frog is 4cm long" quantitative data inference control group qualitative data theory
quantitative data
if you are using meters, you are measuring an object’s
length
if you are using seconds you are measuring
time
if you are using grams you are measuring
mass
in the SI system, you would measure temperature in which unit
celsius
the group of test subjects that does not receive treatment is the
control group
a direct method of gathering information in an orderly way is a
observation
a procedure for testing a hypothesis is a
experiment
a testable explanation of a situation is a
hypothesis
any factor that can change in an experiment is a
scientific method
the group of test subjects that does not receive treatment is the
control group
a direct method of gathering information in an orderly way is a
observation
a procedure for testing a hypothesis is a
experiment
a testable explanation of a situation is a
hypothesis
any factor that can change in an experiment is a
variable
a summary of the data from your experiment that explains what you found is a
conclusion
this should be done prior to developing your hypothesis
research
the group of test subjects exposed to the factor being tested is
experimental group
information gained from observations during an experiment (can be presented in graphs) is a
data
the number of subjects tested in each group in an experiment is the
sample size
a unifying explanation of observed phenomenon supported by numerous experiments
theory
the variable that is measured at the end of the experiment is the
dependent variable
the variable that remains the same in all groups in the experiment is the
constant variable
the variable that the researcher changes and applies to the groups in the experiment is the
independent variable
