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Biology Final Exam: Test 1 Multiple Choice Questions
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Terms in this set (57)
An independent individual that possesses the characteristics of life is called a(n)
organsim
An organ is made up of several
tissues
The simplest entity that exhibits all of the properties of life is called a(n)
cell
The scientific name for the black-footed ferret is Mustela nigripes. The name Mustela indicates the ____________ to which this organism belongs.
genus
If an ecologist is studying the cycling of carbon through a particular environment (which involves the movement of carbon through living things as well as through rock, air, and water), the scientist is studying at
what level of ecology?
ecosystem
Characteristics usually associated with life include all of the following except
lack of change from generation to generation
Which list is organized from smallest to largest?
organelles, cells, tissues, organs, organ systems, organisms
To maintain order within their cells and organs, all living things must
carry on metabolism
Organisms that undergo asexual reproduction
produce offspring that are identical to each other and to the parent.
Young multicelled organisms usually start out small, then grow in size and increase in complexity. This
process is called
development
The units of inheritance are
genes
Scientists have found that ancient fossils
are less similar to present-day organisms than more recent fossils.
Organisms that have descended from the same initial group and have the ability to interbreed belong to the same
species
Which of the following includes the others?
domain
In populations, adaptation usually arises through
natural selection
All the living organisms in a particular area at a particular time make up a
community
The first step in the scientific method is to
Identify the problem
All living things have the following characteristics except
self-replication
Which of the following is considered to be the most basic living unit?
cell
Humans may be classified taxonomically as Homo sapiens. The term Homo refers to the
genus name
What is the term that describes the study of the relationship between living things and components of their environment?
ecology
When examining the hierarchy of life, which of the following terms is most inclusive?
biosphere
Which of the following concepts best describes the wide variety of dog species we observe, ranging from the domesticated golden retriever or the basset hound, to the wild dogs of Africa, to foxes?
evolution
Some bacteria can form resting structures called ___________ that can withstand extremes in temperature, moisture, and radiation.
endospores
What term is used to describe bacteria that can only live in the absence of oxygen?
anaerobes
What gram-positive organisms are the smallest living cells?
mycoplasmas
Rickettsias belong to which major group of bacteria?
proteobacteria
Mad cow disease is caused by an infectious protein, also known as a(n)
prion
What is the main difference between protists and bacteria?
Protists have a nucleus, bacteria do not.
Kelps are a form of what group of protists?
brown algae
Prokaryotes differ from eukaryotes in that they
lack a nuclear envelope
Members of the Archaea differ from members of the Bacteria (or eubacteria) in that only the members of
the Archaea have
different lipids in their membranes
Most bacteria are
heterotrophs
Which of the following is not true of mycoplasmas?
they only inhabit multi-celled organisms
All viruses have
RNA and protein
Prions are composed of
protein
The ________ resemble the ancestor of all animals
choanoflagellates
Considering DNA sequence similarities and common pigments, the _____ are the most likely ancestor of land plants.
green algae
Malarial parasites' favorite food source is
hemoglobin
Which form of bacterial cells are rod shaped?
bacilli
What differentiates gram-positive bacteria from gram-negative bacteria?
the composition of the cell wall
The organism that causes malaria
in a single-celled protozoan
In bacteria, the cell wall is composed mainly of
peptidoglycans.
Each of the following is a common shape of prokaryote except
cilia
Prokaryotes reproduce
via binary fission
Endospores form
in response to adverse conditions
Most members of the domain Archaea are
anaerobes
Halophiles are able to survive
in extremely high salt concentrations
Cyanobacteria play a tremendous ecological role. Among other things, they are responsible for
providing usable forms of carbon and nitrogen for other organisms.
In viruses, the capsid
may be involved in attachment of the virus.
The common human parasite Giardia lamblia
can cause diarrhea
All but one of the following are false regarding protists. Identify the true statement.
Most protists are single-celled organisms; some are multicellular.
Red tides are caused by
dinoflagellates.
Dr. Burkholder hypothesized that Pfiesteria was associated with the massive die-offs of estuarine fish. Her
hypothesis was supported when
new observations revealed Pfiesteria could kill laboratory fish.
The basic unit of life is the
cell
Living cells are separated from the outside environment by a flexible
membrane
What characteristic is not shared by all living organisms?
They make their own energy
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Verified questions
question
In the following sentences, place a caret $(\wedge)$ to in dicate where quotation marks are missing, and underline any words or groups of words that should be italicized. **Example 1.** Have you read Frank McCourt's second novel, called '$\underline{\text{Tis}}$? The Italian phrase la dolce vita translates as the good life.
literature
It has been noted that Washington Irving received critical acclaim as a writer because in his stories he managed to impart insights about human nature that were amusing without being too moralistic. Agree or disagree, basing your answer on "The Devil and Tom Walker."
vocabulary
Each sentence contains an italicized vocabulary word in a form that does not fit the sentence. On the answer line, write the form of the word that does fit the sentence. In geometry class we had to memorize an *axiomatic* and use it to solve problems. ______________
vocabulary
Underline the prefix in items 1 through 10 and the suffix in items 11 through 20. Using the meanings of the prefixes and suffixes listed above, write the meaning of the word.Check your answers in a dictionary.\ hyperactive _____
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