Biology / Unit 13 Bio 3367 worked example, 60 to 90 seconds
Tracing Fertilization Through Early Embryonic Development, Worked
Captions available
The idea
This procedure traces one embryo's path from fertilization through early organogenesis, drawing together this chapter's fertilization and development atoms.
Where people slip
Assuming organogenesis can begin before gastrulation sets the three germ layers is the error here — every organ traces to one germ layer, per Bio 3355, before organ-specific differentiation proceeds.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Something wrong in this lesson? Flag it · Sources for Biology