How does embryogenesis differ between species and why does this occur?…
How does embryogenesis differ between species and why does this occur?
Differences between species in early embryogenesis
additional germ layer in comparison to diploblastic organisms
middle of three primary germ layers
functions to develop bones, muscles, heart, circulatory system and internal sex organs
two primary germ layers
functions to develop inner lining of some systems and some organs (liver and pancreas)
inner of three primary germ layers
What are the functions for each germ layer?
Does this differentiate between diploblastic and triploblastic organisms?
Why is there an extra germ layer and how does this effect the organisms physical attributes?
each germ layer is responsible for developing different part of the organism
How do particular genes affect the onset of either triploblastic or diploblastic development?
What are genes?
Are genes the starting point of the development of an organism?
Does this differentiate between species within this group?
Are there significant differentiations between embryogenesis within the triploblastic and diploblastic groups?
What causes these differences?
Primary stages of human embryogenesis