D. Homozygous dominant because the dad has the dominant allele.
A signaling pathway would need to be regulated because of efficiency, to make what you need when you need it.
Hope this helps!
The similarities in the structure of the three species is due to their sharing a common ancestor while the differences is due to adaptation.
<h3>What is divergent evolution?</h3>
Divergent evolution is evolution where individuals who shared a common ancient ancestor process to have differing structures due to differences in their habitats.
All three species that Flor observed having similar structures is because they had a common ancestor.
The species had differences because they evolved to adapt to their different environments.
Wall geckos and Pacific gulls have temporal holes in their skulls as adaptations to their habitat.
Learn more about adaptations at: brainly.com/question/29594
The circular folds slow the passage of the partly digested food along the intestines, and afford an increased surface for absorption. They are covered with small finger-like projections called villi (singular, villus). Each villus, in turn, is covered with microvilli.
While rugae is only evident when an organ or tissue deflares or relaxes. The rugae unfolds for increase in volume . Plicae remains folded in the intestinal walls.
Rugae is not associated with the large absorptive surfaces in the small intestine.
