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BSC 108 EXAM 1-ALABAMA QUESTIONS
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BSC 108 EXAM 1-ALABAMA QUESTIONS
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BSC 108 EXAM 1-ALABAMA QUESTIONSDomain Eukarya contains animals, plants, protists, and fungi. - Answers-True
The process of keeping internal conditions constant is known as - Answers-
Homeostasis
The levels of biological organization, in order from least complex to most complex, are:
biosphere, ecosystems, communities, populations, organisms, organ systems, organs,
tissues, cells, atoms, molecules. - Answers-False
A new species has been discovered. Individuals of this species are multicellular
eukaryotes that obtain nutrients from decomposing organic matter. In which domain
should this species be classified? - Answers-domain Eukarya
Communities are more complex than populations. - Answers-true
What is the lowest level of structure that can perform all activities required for life? -
Answers-cells
A tentative explanation of an observation is - Answers-hypothesis
A collection of hypotheses that have been repeatedly tested without rejection is called a
- Answers-theory
The three domains of life are: - Answers-Eukarya, Archaea, Bacteria
What is the difference between hypothesis and theory? - Answers-A theory is much
broader in scope than a hypothesis and is generally supported by an accumulation of
extensive and varied evidence.
Describe one theory that unifies biology as a science. - Answers-The theory of evolution
by natural selection unifies biology as a science because it accounts for the unity and
diversity of life on Earth. This theory states that there is an overproduction of offspring
and competition for resources, and variation exists among individual offspring. Unequal
reproductive success (natural selection) among these offspring is the mechanism of
evolution.
What are the steps used in the scientific method? Use an example to illustrate the steps
of the scientific method. - Answers-a)Observations, Question, Hypothesis, Prediction,
Test, Revise hypothesis or Make additional predictions and test them. Example: I
observe that my flashlight does not work. I question whether the batteries are dead. I
hypothesize that the dead batteries are causing my flashlight to not work properly. I
predict that changing the batteries will cause the flashlight to work again. I test my
prediction by replacing the batteries with new ones. If the flashlight works, my
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