Characteristics and classification of living organisms
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Characteristics and classification of living organisms - Leaderboard
Characteristics and classification of living organisms - Details
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| 🇬🇧 | 🇬🇧 |
| Movement | An action causing a change in place or position by an organism |
| Respiration | A chemical reaction in a cell that creates energy |
| Sensitivity | The ability to react or respond to stimuli such as environmental changes |
| Nutrition | Taking in/absorbing organic substances and mineral ions fro growth and tissue repair |
| Excretion | The removal of the waste products of metabolism and substances in excess of requirements |
| Reproduction | The processes that make more of the same kind of organism |
| Growth | Growth is a permanent increase in size, cell number or cell size and dry mass |
| Excretion vs Egestion | Excretion is vaguer and more commonly as the removal of waste products from processes like respiration egestion means the removal of faeces from certain animals |
| What does Assimilating mean? | It means building up larger molecules from smaller ones |
| Species | A species is a group of organisms that reproduce and that can produce fertile offspring |
| List 3 reasons why scientists use binomial names | - it is universally known - to avoid confusion with other organisms - it makes it easier to identify new organisms which make it easier to study their properties |
| 4 things scientists need/use to classify organisms | - anatomy (internal features such as boe structures) - morphology (observable features) - Dna - Protein sequences (such as haemoglobin) | > made up from long chains of amino acid which are done by ribosomes |
| Dichotomous key | A tool which is a series of questions based on identifiable features with 2 answers leading to it's scientific name |
| Binomial name | The binomial name is an internationally agreed system in which the scientific name of an organism is made up of 2 words showing the genus and the species. |