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Samenvatting BIO Nectar H3 Ecosystemen

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2015/2016 Written for academic year
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VWO / Gymnasium
Course
Biologie
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Samenvatting voor het vak biologie van H3 paragraaf 1/4 uit Nectar 4V. Kernbegrippen zijn dikgedrukt en worden verklaard. Processen worden stapsgewijs uitgelegd en opsommingen weergeven met opsommingstekens. par 1: ecosysteem, producent, consument, reducent, draagkracht par 2: energie, trofisch niveau, biomassa, voedselpiramide, heterotroof, autotroof, energiestroomschema par 3: reducenten, humuslaag, rotting, aeroob, anaeroob par 4: successie, climaxstadium, pioniersstadium

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3.1 Ecosystemen
Een afgebakend gebied met organismen en biotische en abiotische relaties is een
ecosysteem.

Producent: produceert organische stoffen uit anorganische stoffen
Consument: zet organische stoffen uit organismen om in andere organische stoffen
Reducent: zet organische stoffen om in anorganische stoffen (bacteriën en schimmels)

De maximale populatiegrootte die een gebied kan onderhouden, heet de draagkracht van
het ecosysteem. Bepalend daarvoor is de beperkende factor.

Populatiedynamiek: de samenstelling van de populaties in een ecosysteem veranderen
voortdurend, doordat:
 aantallen nemen toe of af
 nieuwe populaties ontstaan of verdwijnen

Een blijvende, sneloptrendende verandering in een ecosysteem is een verstoring
 ontstaan plagen (vb: ongehinderde voorplanting van overgebleven prooidieren)
Connected book
image
Unknown Nectar / Biologie 4 Havo / deel Leerboek
Publisher: Unknown ISBN: 9789001789374 Edition: 3

Document information

Level
VWO / Gymnasium
School year
4
Summarized whole book?
No
Which chapters are summarized?
H3
Uploaded on
November 7, 2017
Number of pages
4
Written in
2015/2016
Type
Summary
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Browse related subjects

Subjects

  • bio
  • biologie
  • ecosystemen
  • ecosysteem
  • producent
  • consument
  • reducent
  • rotting
  • energie
  • voedselpiramide
  • autroof
  • successie
  • climaxstadium

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