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Classification
Biology
| Question | Answer |
|---|---|
| Taxonomy | A system biologists use to classify all living things |
| Homology | The idea that characteristics are passed down generations |
| Taxonomy names: | Kingdom Phylum Class Order Family Genus Species |
| Scientific names are made from... | The Genus and Species |
| Three aspects of adaptations | Structural Behavioural Physiological |
| Plant structural adaptations | Physical features that allow a plant to compete: Formation of spines(spikes) to prevent animals eating it Large leaves to enhance photosynthesis Wide and shallow roots to absorb more water and nutrients |
| Plant behavioural adaptations | Shoots grow towards light to maximise photosynthesis Flytrap can digest insects for extra nutrients Grow towards light so can respond to changes |
| Plant physiological adaptations | Processes that allow them to compete Formation of poison as a defence |
| Animal structural adaptations | Sharp claws to climb, dig and catch prey Predators have eyes on front so can judge distance to prey Prey have eyes on side to quickly spot predators |
| Animal behavioural adaptations | Rituals such as male peacocks showing feathers for mating Using tools like monkeys using rocks to crack a nut |
| Animal physiological adaptations | Production of venom or antivenom |
| Extremophites | An organism that can survive in an extreme environment |
| Extreme environment | Somewhere where most organisms cannot survive |
| Quadrat data collecting | Used to count non moving or slow moving things Quadrat is randomly placed and a sample is taken of the area |
| Capture, recapture | Used to count moving organisms Capture and count animals then mark discreetly Return with same conditions at least 24 hours later and do again but don't mark them Total= 1st sample x 2nd samples / marked in 2nd sample |
| Transect | A line that goes across a habitat Used to investigate the gradual change of a habitat |
| Biodiversity is important.... | To ensure that a ecosystem is not too reliant on one organism |
| Alien species | A species that is not native to the eco system. It can cause the biodiversity to become imbalanced by introducing new diseases or simply eating too much. |
| Ecosystem is... | The interaction between a community of living organisms |
| Community... | Two or more organisms |
| Population.... | Total number of species in an area |
| Food chain levels... | Producer (Photosynthesises) Primary Consumer (Herbivore) Secondary Consumer Tertiary Consumer |
| Interdependence | All organisms within an ecosystem rely on one another. Fluctuations in one population can impact all organisms |
| Competition | All organisms must compete for the fundamental things for living. Competition can be interspecies or intraspecies |
| Abiotic factors (8) | Non-living factors -Light intensity -Temperature -pH soil -Moisture levels -Wind intensity -Carbon dioxide levels -Oxygen levels |
| Biotic factors (4) | Living factors -Food - Predators -Pathogens -Alien species |
Created by:
Zoe 1
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