 |
| 1 | |
Which of the following is a property of life? |
| | A) | Heredity |
| | B) | Homeostasis |
| | C) | Metabolism |
| | D) | Reproduction |
| | E) | All of the above |
|
|
|
| 2 | |
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. |
|
|
|
| 3 | |
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 1 or 2 |
|
|
|
| 4 | |
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 |
|
|
|
| 5 | |
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 |
|
|
|
| 6 | |
A group of organisms of the same species living together is referred to as a(n) |
| | A) | population. |
| | B) | community. |
| | C) | species. |
| | D) | ecosystem. |
| | E) | biome. |
|
|
|
| 7 | |
A group of similar cells that act as a functional unit are |
| | A) | organelle. |
| | B) | tissue. |
| | C) | organs. |
| | D) | organ system. |
| | E) | species. |
|
|
|
| 8 | |
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. |
|
|
|
| 9 | |
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. |
|
|
|
| 10 | |
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. |
|
|
|
| 11 | |
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 1 and 3 |
|
|
|
| 12 | |
Which of the following is not a level of organization within cells? |
| | A) | Organelle level |
| | B) | Molecular level |
| | C) | Tissue level |
| | D) | None of these are levels of organization within a cell. |
|
|
|
| 13 | |
Which one of the following is not considered a kingdom of living organisms? |
| | A) | Archaebacteria |
| | B) | Eubacteria |
| | C) | Fungi |
| | D) | Chordata |
|
|
|
| 14 | |
The highest level of complexity listed below is a(n) |
| | A) | population. |
| | B) | organism. |
| | C) | ecosystem. |
| | D) | community. |
|
|
|
| 15 | |
A group of species and the physical environment in which they live are called a(n) |
| | A) | ecosystem. |
| | B) | population. |
| | C) | community. |
| | D) | biome. |
|
|
|
| 16 | |
The original source of energy used by organisms is |
| | A) | DNA. |
| | B) | metabolism. |
| | C) | plants. |
| | D) | the sun. |
|
|
|
| 17 | |
The energy-carrying molecule within the cell is |
| | A) | ATP. |
| | B) | DNA. |
| | C) | CFC. |
| | D) | RNA. |
|
|
|
| 18 | |
In an experimental test, we attempt to manipulate only one factor at a time. This factor is called the |
| | A) | hypotheses. |
| | B) | control. |
| | C) | variable. |
| | D) | prediction. |
|
|
|
| 19 | |
Chlorofluorocarbons (CFCs) are responsible for an increase in the amount of ozone in the atmosphere. |
| | A) | True |
| | B) | False |
|
|
|
| 20 | |
The amount of energy available stays constant as it flows through the ecosystem. |
| | A) | True |
| | B) | False |
|
|
.