Chapter 1
About this set
Created by:
laurenmtoledo on October 27, 2011
Subjects:
Description:
chapter 1 - exploring and classifying living things
sec 2- living things
sec 3- where does life come from?
sec 4- how are living things classified?
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31 terms
Terms | Definitions |
|---|---|
 cell | the smallest unit of an organism that carries on the functions of life. |
| organism | any living thing |
| 5 traits living things have in common: | 1 organized 2 respond 3 use energy 4 grow and develop 5 reproduce |
| stimulus/stimuli | anything that causes a change in an organism |
| response to stimulus/stimuli? | reaction |
| homeostasis | an organisms ability to keep proper conditions inside no matter what is going on outside. |
| How do multi-celled organisms grow? | they get more cells |
| the main source of energy for living things? | the sun |
| 1 celled organisms grow due to an increase in ________. | the size of the cell |
| grow means to... | get bigger |
| development means... | all the changes that take place in an organisms life |
| life span definition | average # of years expected to live for an organism |
| Organisms need what 3 things to live? | 1 a place to live 2 water 3 nutrients |
| When organisms die what happens to the substances in their bodies? | they break down and are released into the soil or aire and can be used again by other organisms living. |
| biogenesis | theory that living things come only from living things. |
| spontaneous generation | idea that living things come from nonliving things |
| classification | when you place similar things together, such as organisms into groups |
| 1st recognized classification system was by... | Aristotle |
| Who developed a system based on grouping organisms due to similar structures? | Carolus Linnaeus |
| phylogeny | evolutionary history of an organism, or how it has changed overtime. |
| kingdom definition | 1st and largest classification category |
| species definition | smallest classification category |
| Linnaeus' Scheme (7 levels of the classification system)? | 1 kingdom 2 phylum 3 class 4 order 5 family 6 genus 7 species |
| Animal kingdom examples | mammal- panda amphibians- tree frog reptiles- eastern box turtle fish- salmon bird-woodpecker |
| Plant Kingdom examples | cherry blossoms, oak tree, cactus, basil plant |
| Fungi/Fungus Kingdom examples | athlete's foot, mushroom |
| protist kingdom example | algae |
| eubacteria examples | salmonella, e.coli |
| archaebacteria example | halo bacteria |
| binomial nomenclature | system used by scientists to name organisms and means 2 name naming system; uses genus and species |
| 4 reasons for binomial nomenclature | 1 helps avoid mistakes 2 organisms with similar evolutionary histories are classified together 3 give descriptive info about the species 4 allows info about organisms to be organized easily and efficiently |
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