Vztahy mezi organismy
Potravní vztahy mezi organismy jsou příkladem jejich vzájemné závislosti. Jsou 3 skupiny organismy. 1. skupina = producenti (zelené rostliny a sinice) jsou schopné vytvářet živiny - cukry, 2. skupina = konzumenti (živočichové) nemohou vytvářet živiny, 3. rozkladači (houby a bakterie) rozkládají těla uhynulých producentů a konzumentů na jednoduché látky. Potravní řetězec - jeden organismus je zdrojem energie pro druhý. Potravní pyramida - grafické vyjádření potravní závislosti mezi zelenými rostlinami, býložravci a masožravci.
Býložravci - živočichové živící se potravou rostliného původu
Masožravci - živočichové živící se potravou živočišného původu
Všežravci - živočichové živící se potravou všeho druhu
Symbióza - výhodné soužití dvou různých živočichů
Predace - vztah predátora který loví a požírá kořist
Parazitismus - soužití mezi parazitem a jeho hostitelem
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Cities in British Columbia faced another hour of vehicle convoys and rallies in harmony with protesters occupying downtown Ottawa in rival to COVID-19 mandates on Saturday.
Vancouver administer said Saturday afternoon that hundreds of vehicles from a Bring Mainland convoy had entered the downtown core causing meaningful congestion.
https://newsca.ca/
Let Mainland demonstrators gathered in Langley before driving to downtown Vancouver for a make a comeback at Robson and Burrard streets. The Vancouver Islet convoy left side Campbell River at daybreak Saturday, with plans to stage a rally at the Victoria legislature.
Theres not a living soul here interested in any issues other than our freedom. Nothing wants to argue, not anyone wants to war, no one wants to defile anything, Langley convoy sharer Escarpment Caron told Despatch Canada ahead of hitting the road.
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