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Science chapter 1
Classifying and exploring life
| Question | Answer |
|---|---|
| what is life? | an organization of all living things |
| what are the 9 characteristics of life? | 1. cells 2. respond to stimuli 3. maintain homeostasis 4. reproduction 5. grow and develop 6. need nutrients 7. organization 8. use energy 9. have dna |
| what are cells? | the smallest unit of life |
| what is stimuli? | reacting to internal and external changes in our enviroment |
| what is homeostasis | the ability to maintain a stable internal environment when outside conditions are changing |
| w what are the two kinds of reproduction | 1. asexual-one parent organism 2. sexual- two parent organism |
| what are some nutrients organisms need? | water, oxygen, carbon dioxide, food=energy |
| what are the two types of organization? | unicellular, multicellular |
| what does DNA stand for? | deoxyribonucleic acid |
| what are the two things our scientific names consist of? | genus name and species name |
| what is a wolf? | Canis lupis |
| what is a human? | Homo sapien |
| what is a pygmy sperm whale? | Physeter catoden |
| what is a skunk | Mephitis mephitis |
| what is a gorilla? | Gorilla gorilla |
| How are we classified | -Kingdom=Animalia(catch our food) -Phylum= Chordata(spinal chord) - Class = Mammalia( catch our food, live birth, fur..)- Order= Primate(posable thumbs) -Family= Homindae (walking upright - Genus= Home -Species= Sapiens |
| Why use latin? | people can communicate all over the world and understand it |
| what is a species? | organisms that can mate with eachother and produce viable offspring |
| what does viable mean? | that offspring can have thier own offsping |
| what is a dichotomous key? | a series of descriptions used to helo identify and organism |
| what is a cladogram? | a diagram showing relationships among organims |
| what is the difference between a cladogram and a dichotomous key? | a cladogram is a diagram that shows relationships between organismS while a dichotomous key is a series of descriptions that helps identify an organism |
| what is the EYE PIECE x THE OBJECTIVE??? | THE TOTAL LEVEL OF MAGNIFICATION |
| what do we use as our low power? | the yellow objective |
| what is low power? | 10x X 10x = 100x |
| what is high power? | 10x X 40x = 400x |
| what is classification? | the arrangement of organisms into orderely groups based on thier similarities |
| why should we classify? | 1. organization 2. easier 3. to understand similarities and differences among living things |
| what is taxonomy? | the science of classification |
| what is the current classification system called and what evidence does it use? | systematics; it is ever changing 1. unicellular or multi 2. how an organism obtains food 3. habitat 4. structure and function of its features 5. DNA |
| what are the three domains organisms are classified into? | archaea, bacteria, eukarya |
| what are archaea? | unicellular organisms only found in extreme conditions |
| what are bacteria? | simple unicellular organisms |
| what are eukarya? | more complex unicellular and multicellular organisms |
| what is the two part scientific name called? | binomial nomenclature |
Created by:
bhmartire
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