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1 |  |  What is the principle of biogenesis?
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|  | A) | the theory that life started on Earth as a result of organisms being brought to Earth by an asteroid |
|  | B) | the theory that all life on Earth evolved from a first single cell |
|  | C) | the theory that life slowly evolves toward higher forms of complexity and intelligence |
|  | D) | the theory that a living organism can arise only from another living organism |
|  | E) | the theory that life can be described through mathematical equations. |
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2 |  |  Which of the following is a characteristic of all living things?
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|  | A) | Very few living things go through stages of development. |
|  | B) | All living things depend on an external source of energy. |
|  | C) | All living things are composed of two or more cells. |
|  | D) | All living things reproduce sexually by a male organism uniting with a female organism. |
|  | E) | All living things respond equally to the sense of sight. |
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3 |  |  In what way does a plant cell differ from an animal cell?
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|  | A) | Plant cells are larger than animal cells. |
|  | B) | Plant cells do not store water and other liquids. |
|  | C) | Plant cells do not carry on photosynthesis, but animal cells do. |
|  | D) | Plant cells contain a nucleus, but animal cells do not. |
|  | E) | Plant cells contain a cell wall and chloroplasts, but animal cells do not. |
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4 |  |  What is the best description of the role played by organelles in a living cell?
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|  | A) | Organelles are structures that carry out all of the processes that take place in a living cell. |
|  | B) | Organelles form the outer membrane of a cell and give a cell its shape. |
|  | C) | Organelles protect a cell from invasion by viruses. |
|  | D) | Organelles carry food energy from the blood to the interior of a cell. |
|  | E) | Organelles combine to form tissue from which organs are made. |
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5 |  |  What is the best description of the process known as metamorphosis?
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|  | A) | Metamorphosis is the period during which a fertilized egg cell differentiates to form different body organs. |
|  | B) | Metamorphosis is the process by which certain animals go through several very different life stages. |
|  | C) | Metamorphosis is the growth of a young organism into a different type of organism. |
|  | D) | Metamorphosis is the final stage in the life of an organism, a time when the organism prepares for death. |
|  | E) | Metamorphosis is the splitting of a fertilized egg cell into two identical organisms shortly after fertilization—a process that leads to identical twins. |
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6 |  |  What is the main feature that distinguishes amphibians from fish or reptiles?
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|  | A) | Amphibians do not live near water. |
|  | B) | Amphibians do not lay eggs. |
|  | C) | Amphibians breath through external gills throughout their entire lives. |
|  | D) | Amphibians have two or more different stages in their lives. |
|  | E) | Most amphibians are cold blooded, but very few fish or reptiles are cold blooded. |
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7 |  |  Which of the following statements is true?
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|  | A) | Female mammals have milk-producing mammary glands, but female birds do not. |
|  | B) | Female mammals produce eggs that are internally fertilized by male mammals, but female birds do not. |
|  | C) | Mammals have lungs and breathe air, but birds do not. |
|  | D) | Mammals are protective of their young, but birds never are. |
|  | E) | Mammals rely on the senses of sight and sound, but birds rely mainly on smell. |
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8 |  |  What five senses do all complex animals have?
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|  | A) | sight, hearing, thinking, smell, intuition |
|  | B) | hearing, thinking, smell, taste, touch |
|  | C) | sight, hearing, smell, taste, touch |
|  | D) | sight, smell, taste, touch, intuition |
|  | E) | hearing, smell, taste, dreaming, touch |
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9 |  |  What is an ecosystem?
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|  | A) | all the natural resources available to a particular organism |
|  | B) | a community of organisms, together with all available natural resources and habitats used by those organisms |
|  | C) | a habitat, or home, for one or more organisms |
|  | D) | all the organisms in a particular food web |
|  | E) | a group of organisms living around a pond |
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10 |  |  In Darwin's theory of evolution, what is the process Darwin called natural selection?
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|  | A) | the process of selecting the gender (sex) of an offspring |
|  | B) | the process of an organism adapting to a habitat for which it is best suited |
|  | C) | the process of an organism learning special skills so as to be better suited to its habitat |
|  | D) | the process of an organism choosing food sources that are most nutritious for that organism |
|  | E) | the process by which individuals with favorable traits within a species are most likely to survive and pass those traits on to offspring |
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