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1 | |
A set of instructions that determines the characteristics of an organism is called a(n) |
| | A) | chromosome |
| | B) | cell |
| | C) | nucleus |
| | D) | gene |
| | E) | DNA molecule |
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2 | |
A ________ is a tiny compartment covered by a thin membrane. It is the basic unit of life. |
| | A) | nucleus |
| | B) | mitochondrion |
| | C) | cell |
| | D) | tubules |
| | E) | tissue |
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3 | |
Which of the following is a property of life? |
| | A) | response to stimulation |
| | B) | homeostasis |
| | C) | metabolism |
| | D) | reproduction |
| | E) | all of the above |
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4 | |
The test of a hypothesis is a(n) |
| | A) | experiment |
| | B) | challenge |
| | C) | new hypothesis |
| | D) | theory |
| | E) | question |
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5 | |
The key to a successful scientific investigation is |
| | A) | developing a correct hypothesis |
| | B) | developing a variety of hypotheses |
| | C) | a complex experiment |
| | D) | including two or more controls in the experiment |
| | E) | making careful observations |
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6 | |
A factor that might influence a process is called a(n) |
| | A) | control |
| | B) | variable |
| | C) | question |
| | D) | factor |
| | E) | prediction |
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7 | |
The science of biology |
| | A) | explores the magical processes by which our world operates |
| | B) | is conducted by people with poor organizational skills. |
| | C) | discovers the general principles of our world by applying inductive reasoning |
| | D) | explores a variety of problems using the "gut" instincts of scientists |
| | E) | both a and d |
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8 | |
Using an algebraic formula to calculate the load capacity of a bridge is an example of |
| | A) | deductive reasoning |
| | B) | inductive reasoning |
| | C) | theoretical math |
| | D) | applied math |
| | E) | mathematical reasoning |
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9 | |
Most new cars are manufactured with air conditioners that no longer use chlorofluorocarbons (CFCs) as coolants. This is in part due to |
| | A) | their role in the reduction of light intensity in the atmosphere |
| | B) | their presence in the upper atmosphere for over 100 years |
| | C) | the allergic reaction that occurs in most people when they inhale CFCs |
| | D) | their role in the destruction of the ozone layer |
| | E) | both b and d |
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10 | |
Which of the following are in the correct order? |
| | A) | test, make observations, develop a hypothesis, make predictions, draw conclusions |
| | B) | make observations, develop a hypothesis, make predictions, test, draw conclusions |
| | C) | develop a hypothesis, test, make predictions, make observations, draw conclusions |
| | D) | make predictions, develop a hypothesis, test, make observations, draw conclusions |
| | E) | either a or b |
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11 | |
In an effort to improve crop yield a rancher tries different kinds of fertilizers. She uses an organic fertilizer on one field and a chemical fertilizer on another. A third field is not fertilized. The two fertilizers represent what part of her experiment? |
| | A) | the hypothesis |
| | B) | the control |
| | C) | variables |
| | D) | predictions |
| | E) | a theory |
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12 | |
The unfertilized field in the above experiment represents what part of her experiment? |
| | A) | the hypothesis |
| | B) | the control |
| | C) | variables |
| | D) | predictions |
| | E) | a theory |
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13 | |
The scientific method is limited to |
| | A) | events that occur in our solar system |
| | B) | supernatural phenomena |
| | C) | religious questions |
| | D) | mathematical problems |
| | E) | observable and measurable processes |
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14 | |
A group of individuals living together is referred to as a(n) |
| | A) | population. |
| | B) | community. |
| | C) | species. |
| | D) | ecosystem. |
| | E) | biome. |
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15 | |
A tropical forest is an example of a(n) |
| | A) | population |
| | B) | comminity |
| | C) | species |
| | D) | ecosystem |
| | E) | biome |
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16 | |
While walking through a deciduous forest in New England one might observe squirrels, blue jays, gypsy moths, sugar maples, and blue spruce. All of those organisms represent a(n) |
| | A) | population |
| | B) | community |
| | C) | species |
| | D) | ecosystem |
| | E) | biome |
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17 | |
A bacterial colony consists of identical cells that are derived from a single original cell. Those cells represent members of the same |
| | A) | population |
| | B) | community |
| | C) | species |
| | D) | ecosystem |
| | E) | biome |
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18 | |
Over 300 breeds of purebred dogs exist today. They are the result of |
| | A) | evolution |
| | B) | natural selection |
| | C) | artificial selection |
| | D) | selective selection |
| | E) | adaptive evolution |
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19 | |
Scientists believe that the ozone layer over northern Europe may begin to break down because |
| | A) | they have detected elevated levels of chlorine in the upper atmosphere in that area |
| | B) | the number of cases of skin cancer in that area has increased in recent years |
| | C) | crop yields are down in the area due to increased levels of ultraviolet radiation |
| | D) | that is the next likely place to be affected after Antarctica |
| | E) | none of the above |
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20 | |
Ultraviolet light causes skin cancer by |
| | A) | damaging the organelles in skin cells resulting in cell death |
| | B) | damaging the DNA in skin cells |
| | C) | increasing the quantity of melanin in skin cells |
| | D) | concentrating toxins in skin cells |
| | E) | both a and c |
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