1 of 1
1. A hypothesis must be... (1 point)
[Choice A] accurate
[Choice B] mathematical
[Choice C] short
[Choice D] testable
2. What should you do if the results of your experiment do
not support your hypothesis? (1 point)
[Choice A] Go ahead and publish your results
[Choice B] Consider the results abnormal and continue
working
b
[Choice C] Find a way to rationalize the results
[Choice D] Use a different method and retest
3. The _________________ is the thin layer of Earth's
atmosphere where life exists. (1 point)
[Choice A] geosphere
[Choice B] atmosphere
[Choice C] biosphere
[Choice D] hydrosphere
4. Where in the atmosphere is the ozone layer located ?
(1 point)
[Choice A] stratosphere
[Choice B] thermosphere
[Choice C] trophoshere
[Choice D] mesosphere
5. Which of the following is an abiotic factor? (1 point)
[Choice A] tree branches
[Choice B] grass
[Choice C] wind
[Choice D] snail
6. True or False
Matter is continually added to the biosphere.
(1 point)
True
False
7. A mother and her child would be considered an example
of a(n) _________________________________. (1 point)
[Choice A] community
[Choice B] population
[Choice C] ecosystem
[Choice D] biome
8. What is an area where organisms live together with their
physical environment called? (1 point)
[Choice A] ecosystem
[Choice B] biome
[Choice C] biosphere
[Choice D] population
9. Organisms with strong survival traits are more likely to
pass on the traits in reproduction explains the theory of
__________________________________. (1 point)
[Choice A] heredity
[Choice B] selective breeding
[Choice C] natural selection
[Choice D] evolution
10. What is the inherited trait that increases an organism's
chance of survival in an environment? (1 point)
[Choice A] adaptation
[Choice B] characteristic
[Choice C] evolution
[Choice D] natural selection
11. As it pertains to biodiversity, what do humans impact the
most? (1 point)
[Choice A] habitat loss
[Choice B] interspeciation
[Choice C] genetic mutations
[Choice D] invasive species
12. Ecologists study the relationships between flora and
fauna (plants and animals), and their environment. What is
the proper listing of the levels of ecological organization from smallest to largest? (1 point)
[Choice A] population—>ecosystem—->organism
—->biosphere—>community—>biome
[Choice B] community—>biosphere—>organism
—>population—>biome—>ecosystem
[Choice C] organism—>population—>community
—>ecosystem—>biome—>biosphere
[Choice D] biosphere—>ecosystem—>organism
—>community—>biome—>population
13. Pictorial examples shown in the W, X, Y, Z boxes
represent levels of ecological organization in a Savanna
Biome. Use the pictures below to answer the following
questions.
Which letter represents a community?
(1 point)
[Choice A] W, a group of one type organism interacting
with an environment
[Choice B] X, many types of organisms interacting with
their nonliving environment
[Choice C] Y, a single lion resting by itself and not
interacting
[Choice D] Z, a group of zebras and wildebeests
interacting
14. Which pictorial example represents the lowest level of
organization? (1 point)
[Choice A] W
[Choice B] X
[Choice C] Y
[Choice D] Z
15.List the pictorial examples W, X, Y, and Z in order from
largest to smallest level of ecological organization.
(1 point)
[Choice A] W → X → Z → Y
[Choice B] Y → W → Z → X
[Choice C] Z → W → Y → X
[Choice D] X → Z → W → Y
16. Which level of organization represents a group of
organisms of one species that live in the same place at the
same time? (1 point)
[Choice A] ecosystem
[Choice B] community
[Choice C] population
[Choice D] biome
17. All life on Earth under the atmosphere, including the
lithosphere and the hydrosphere is ... (1 point)
[Choice A] a single ecosystem
[Choice B] a single biome
[Choice C] the biosphere
[Choice D] the hydrosphere
18. Which of the following is essential when considering the
potential of numerous organisms to offer medicines for
human usage? (1 point)
[Choice A] genetic biodiversity
[Choice B] population control
[Choice C] ecological succession
[Choice D] gene flow
19. An endangered species ______________________.
(1 point)
[Choice A] may eventually become threatened or rare
[Choice B] may soon become extinct over all or most of
its range
[Choice C] may become rare in the next years
[Choice D] may be considered economically important
but rare
20. The long, thin legs of a white-tailed deer help them
quickly escape danger. What are deer's legs an example
of? (1 point)
[Choice A] adaptation
[Choice B] speciation
[Choice C] communication
[Choice D] diversity
21. Choose the BEST description of the relationship
between survival of the fittest and natural selection?
(1 point)
[Choice A] Organisms with favorable traits will be
naturally selected to pass their traits on to the next
generation.
[Choice B] Organisms with the lowest gene mutations
will be naturally selected to pass their traits on to the
next generation.
[Choice C] Organisms with the most recessive genes will
be naturally selected to pass their traits on to the next
generation.
[Choice D] Organisms living in a stable environment will
be naturally selected to pass their traits on to the next
generation.
22. Darwin's theory of natural selection is stated as:
(1 point)
[Choice A] Individuals with favorable traits are more
likely to survive and reproduce.
[Choice B] There is no variation in organisms in a
population.
[Choice C] Only a small number of offspring in a
population are born.
[Choice D] All individuals in a population have the same
genetic traits.
23. Select the smallest unit of matter that is made up of
protons, neutrons, and electrons. (1 point)
[Choice A] Atom
[Choice B] Molecule
[Choice C] Cell
[Choice D] Organ
[Choice A] Atom
[Choice B] Molecule
[Choice C] Cell
[Choice D] Organism