Prosesau bywyd: Cydberthnasoedd

Cynefin pegynol Picture of habitat
Cynefin diffeithdir Picture of habitat
Cynefin coedwig law Picture of habitat
Cynefin glaswelltir safana Picture of habitat
Gwe fwyd Diagram of food web
Gwe fwyd 2 Diagram of food web
Ysglyfaethwr/ysglyfaeth Graph showing predator/prey relationship
Cadwyn fwyd syml Diagram of simple food chain
Gwe fwyd syml Diagram of simple food web
Pyramid o rifau Diagram of simple pyramid of numbers
Pyramid o rifau 2 Diagram of odd shaped pyramid
Pyramid biomass Diagram of pyramid of biomass