Species, communities and ecosystems by Mooza Albuainain https://padlet.com/mbisthebestp/ra3jxqo12c9n en-us 2016-10-07 15:08:10 UTC 2025-10-04 06:28:36 UTC hello@padlet.com Species mbisthebestp https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129153151
  • They are groups pf organisms that can potentially interbreed to produce fertile offspring.
  • Sometimes members of different species interbreed this is called cross-breeding, but the offspring that is produced could be infertile. 
  • Reproduction seperation is a reason why some animals that have similar characteristics are not the same specie.


    • ]]>     2016-10-07 15:12:37 UTC https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129153151     Populations mbisthebestp https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129161720
  • A population is a group of organisms of the same species who live in the same area at the same time.
  • If two populations live in different areas they are unlikely to meet so they cannot interbreed.
  • If two populations of the same species never interbreed then they might develop different characteristics. 
  • Even though they look different ,if they still can interbreed and produce a fertile offspring, they still are a part of the same species.
    • ]]>     2016-10-07 15:34:05 UTC https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129161720     Nutrition mbisthebestp https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129166985 All organisms need a supply of organic nutrients. They are needed for growth and reproduction. 
    There are two types of obtaining energy and they are:
    1. Autotrophic: self-feeding
      • They make their own supply of carbon compounds from carbon dioxide and other chemical compounds and elements.
    2. Heterotrophic: feeding on others
      • They obtain their carbon compounds from other organisms.
    Some organisms are not exclusively autotrophic or heterotrophic, they are called mixotrophic.
    ]]>     2016-10-07 15:47:24 UTC https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129166985     Consumers mbisthebestp https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129173365
  • Consumers feed off of other organisms. These organisms are either still alive or have been dead for a short time.
  • Consumers ingest their food. They take in undigested material from other organisms, then digest it and absorb the energy it needs through its digestive system.
  • Consumers are divided into trophic groups depending on what organisms they consume:
    1. Primary: feeds on autotrophs
    2. Secondary: feeds on
    3. and so on... 
    • ]]>     2016-10-07 16:07:33 UTC https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129173365     Detritivores mbisthebestp https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129184810
  • They ingest dead organic matter and then digest it internally and absorb the products of digestion. 
  • They eat wastes, feces from animals, hairs and feathers of dead animals and dead plants.
    • ]]>     2016-10-07 16:40:15 UTC https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129184810     Saprotrophs mbisthebestp https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129187274
  • They secrete digestive enzymes into the dead organic matter and digest it externally. Then they absorb the product that comes from that reaction.
    • ]]>     2016-10-07 16:48:15 UTC https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129187274     Communities mbisthebestp https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129191481 A community is formed by populations of different species living together and interacting with each other.
    • An important part of ecology is to investigate the relationships between organisms.
    • Sometimes, a relationship only benefits one organism while it harms the other. Sometimes it benefits both organisms where its a win-win situation.
    • All species depend on other species for long time survival. For that reason, a population of one species could never be in isolation.
    ]]>     2016-10-07 17:02:04 UTC https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129191481     Ecosystems mbisthebestp https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129193812 An abiotic environment is the non-living surroundings of air, water, soil or rock.
    • A community depends on an abiotic environment in order to survive 
    • Sometimes an abiotic environment influences the organisms to adapt to it so they can survive
    • The opposite can happen, the organisms may also have an effect of the abiotic environment.
    Not only there is an interaction between species( community) but there is also an interaction between those species and their surroundings, known as an ecosystem.
    • An abiotic environment provides autotrophs and heterotrophs inorganic nutrients that they need in order to survive.
    ]]>     2016-10-07 17:09:04 UTC https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129193812     Nutrients are recycled  mbisthebestp https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129198110 Organisms absorb the elements that they need as inorganic nutrients from the abiotic environment, use them and then return them to the environment with the atoms unchanged.
    The elements are passed down from organism to organism as it changes but eventually goes back to its original form, returning to the abiotic environment.]]>     2016-10-07 17:22:36 UTC https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129198110     Sustainability of ecosystems mbisthebestp https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129199791 There three sustainability requirements and they are:
    1. nutrient availability
    2. detoxification of waste products
    3. energy availability
    With these 3 things an ecosystem can live for a long time

    ]]>     2016-10-07 17:27:52 UTC https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129199791     Done by: mbisthebestp https://padlet.com/mbisthebestp/ra3jxqo12c9n/wish/129204200                 Mooza Albuainain
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