What is life?
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45 terms
Terms | Definitions |
|---|---|
 Stimulus | A change in an organism's environment that causes the organism to react. |
| Autotrophs | Organisms that make their own food. |
| Spontaneous generation | The mistaken idea that living organisms arise from nonliving sources. |
| Cell | The basic unit of structure and function in an organism. |
| Metabolism | Organisms that get energy by consuming other organisms. |
| Response | An organism reacts to a stimulus. |
| Controlled experiment | A scientist carries out a series of tests that are identical in every respect exept for one factor, which is the manipulative variable. |
| Homeostasis | An organism's ability to maintain stable internal conditions. |
| Asexual reproduction | To produce offspring that are similar to the parents. |
| Classification is the process of grouping things based on what? | similarities and how they are alike. |
| Classification is useful by knowing how an organism is what? | Classified |
| Because of classification you know a good deal of what about the organism? | information |
| Biologists use classification to do what? | organize living things into groups. |
| Why do biologists organize living things into groups? | So that the organisms are easier to study. |
| What is the scientific study of how living things are classified? | Taxonomy |
| Taxonomy also involves what? | Naming organisms |
| Who developed the system scientists use? | Carlous Linnaeus |
| The man that developed the system scientists use was what nationality? | Swedish |
| Linneaus placed organisms in groups based on their what? | observable features |
| The system is named what? | Binomial nomenclature |
| Binomial means what? | Two names |
| Under this system each organism has how many parts to its name? | Two |
| The first word in an organisms scientific name is its what? | genus name |
| A genus name is like your family ____________name? | last |
| What is a classification grouping that contains similar, closely related organisms? Ex: Felis (house cat, puma, marbled cat) They share characteristics such as shartp, retractable claws. | Genus |
| What is the group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce? | Species |
| When using binomial nomenclature the scientific name is written in what? | italics |
| The first word in binomial nomenclature describes the what? | Genus and is capitalized |
| The second word in binomial nomenclature describes the what? | Species and is in lowercase |
| The language used for naming organisms is what? | Latin |
| How many levels of classification do they have? | eight |
| Domain | The broadest level of organization |
| Kingdom | within domain, there are kingdoms |
| Phylum | within kingdoms, there are phyla;(singular phylum) |
| Class | Mammalia |
| Order | Primates |
| Family | Hominoidea |
| Genus | Homo |
| Species | Sapien |
| What are six characteristics all living things share? | Cellular organization, similar chemicals, energy, they respond to their surroundings, grow, deelop, and repoduce |
| How did Redi's experiment help disprove the idea of spontaneous generation? | She designed a controlled experiment to show that maggots, which developed into new flies do not arise from decaying meat. |
| What are the four basic needs all living things must satisfy? | Food, water, living space, adn stable internal conditions |
| Describe the difference between growth and development? | Growth is when you grow and development is when you get more mature. |
| Multicellulare is what? | organisms are compsed of many cells |
| What is an organism? | 1) Living things that carry out all basic life processes. 2) They take in materials and release energy. 3) They release water, grow, respond to the environment, and reproduce. 4) Also made up of organ system. |
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