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Chapter 01 : An Introduction to Life on Earth
Pre-Test
Pre-Test
This activity contains 15 questions.
Biology is the study of _____.
Earth
the atmosphere
matter
life
Scientific literacy includes having a working knowledge of how science works and a basic knowledge in the sciences. It is even more important in biology because it will help you to be a(n) _____ citizen.
inactive
disruptive
cooperative
informed
Which of the following best describes the difference between scientific theories and hypotheses?
Hypotheses and theories are basically the same thing.
Theories are hypotheses that have been proven true.
Hypotheses are narrow in scope; theories have broad explanatory power.
Hypotheses are guesses; theories are answers.
The smallest unit of life is the _____.
organ
tissue
cell
atom
Choose the answer that best describes the scientific method.
hypothesis, experiment, observation, conclusion
guess, hypothesis, experiment, conclusion
observation, hypothesis, experiment, absolute proof
observation, hypothesis, experiment, conclusion
In a scientific experiment, one must have a(n) _____ in which all variables remain constant.
hypothesis
error
experimental group
control
Which of the following statements about photosynthesis is true?
Photosynthetic organisms must gain energy by consuming other organisms.
Photosynthesis is the process that captures the energy in sunlight and stores it as sugar molecules.
Only plants use photosynthesis.
Living things do not require an energy source.
The units of heredity that provide information needed to control life are the _____.
carbohydrates
genes
proteins
variables
Choose the
best
response. Living things are _____.
both complex and organized
organized
either complex or organized
complex
What is energy?
movement
the amount of food eaten
the ability to perform work
the rearrangement of chemical molecules within matter
Every organism living today carries the legacy of a shared ancient heritage. What characteristic of life allows this relationship to occur?
Living things are both complex and organized.
Living things respond to stimuli.
Living things acquire and use materials and energy.
Living things use DNA to store information.
_____ is the accumulation of generation-to-generation heritable changes within a group.
Genetic drift
Natural selection
Heredity
Evolution
The most important force in evolution is _____.
natural selection
gene flow
genetic drift
the founder effect
Natural selection is best measured by _____.
rate of environmental change
reproductive success
biodiversity
numerous adaptations
Which of the following species is having the largest effect on the environment and biodiversity?
Plethodon cinereus
Pan troglodytes
Canis lupus
Homo sapiens
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