Exam (elaborations) Bio exam 1 answered.

Bio exam 1 answered.
Question 1
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In an ecosystem, energy

Select one:
a. comes ultimately from bacteria
b. cycles along with chemical nutrients
c. typically flows from producers through a series of consumers


d. typically flows from consumers to producers to decomposers

Question 2
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Life is organized in a hierarchical fashion. Which of the following sequences correctly
lists that hierarchy from least inclusive to most inclusive?
Select one:
a. organism, organ system, tissue, population, organ, organelle, community, cell,
ecosystem, molecule

b. ecosystem, population, organ system, cell, community, molecule, organ, organism,
organelle, tissue

c. molecule, organelle, cell, tissue, organ, organ system, organism, population,
community, ecosystem


d. cell, molecule, organ system, organ, organelle, population, tissue, organism,
ecosystem, community

Question 3
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, Bio exam 1 answered.
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Organisms that are prokaryotes are in the domains

Select one:
a. plantae and Animalia
b. bacteria and Archaea


c. fungi and Bacteria
d. eukarya and Archaea

Question 4
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A theory is
Select one:
a. an idea that has been proven
b. an explanation of an idea that is broad in scope and supported by a large body of
evidence


c. a description of a belief that invokes the supernatural
d. a concept in the early stages that still needs to be tested

Question 5
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To be scientifically valid, a hypothesis must be
Select one:
a. testable and falsifiable


b. controlled
c. reasonable
d. part of a theory
Question 6
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Members of the kingdom Animalia
Select one:

a. are composed of cells that lack a cell membrane
b. can obtain their food by eating other organisms
c. make their own food through photosynthesis
d. can obtain their food either by absorption or by photosynthesis



Question 7
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An antibiotic kills 99.9% of a bacterial population. You would expect the next generation
of bacteria
Select one:
a. to die out due to the drastic decrease in population size
b. to be more contagious than the prior generation
c. to be more resistant to that antibiotic


d. to be just as susceptible to that antibiotic as was the previous generation

Question 8
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A scientist performs a controlled experiment. This means that

Select one:
a. one experiment is performed, but the scientist controls the variables
b. the experiment is repeated many times to ensure that the results are accurate
c. two experiments are conducted, one differing from the other by only a single
variable


d. the experiment proceeds at a slow pace to guarantee that the scientist can carefully
observe all reactions and process all experimental data

Question 9
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