Summary
Summary voortplanting by vertebrate, lewenswetenskappe gr.12
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Kleurvolle en volledige opsommings van die “topic” Vootyplanting by Vertebrate in gr12 lewenswetenskappe
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, v.o.o.h.e x ein.g 6->
Doel:Om meer lede v.n specie voort to bring a lodoende die forlewing van aaardie specie to verseller.
* Ongeslagtelike voort planting
-legs1 organism is betrokke, nageslag is geneties identies an over. (=
NADEEL)
-gebeur 8knopvorming/edeling / Kan vegatetiefby plante voorkom.
-leg) Mitotiese Jeldeling vind plans.
-
voordele: gefalle kan vinnig toeneem
·
geen maat, hoergeving to word nie.
benut word
qunstige toestande kan ten volle
·
↳
geclagtelike voort planting
versmelting v. gamete om nurve geslag to form wasgenetics verskillend is v. overgeslag.
vermenging v. geneticle material
-
Jeldeling 0Meiole
> rereiltes vir sukses: ·
I individue v. Telle (pelie maar to gellag nodig.
·
Vioeictor medium waavin spermielle kan Iwem nodig
·
manier om ontwikkelende kleintjiel to wood wind.
* Kategoriesvia voort planting strategies
·
aantal ever, wat wyrie producer.
·
setel van berugting, inwendige -/ hitwendige Devrugting
·
Plek Naar die embrio ontwikkel voeding v. Ombrio
·
hoe vinnig peintile no hulself can omsien
·
Mate v. overcorg Wat nodig is.
& voort planting strategie
-
habitat v.d. dier speel kritieke vos in manier waarop nul voorplant.
->
Byna ele aspel v. voorplanting by vertebrate word beinvied 8ofhul waterdieve/landdieve is.
Werweldieve plant voor 8geslagtelike voorplanting. Devrugting mostplaaivind.
-
problem by landdieve: ·Iperm benodig voeistof medium on ovum to bevels.
-
->
Imedium mag nie uitdrog in omgewing nie:inwendige berrupting
gewerwede waterdieve bring hele lewenciklul /'n deel daarvan, in water dear.
-
:hie problem vir sperm on to swem nie.
->
omringde water bird 1 vir sperm or to swer
...
hitwendige voort planting
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