Triangle, of course, is a delta genes change. Oh, poor fate has changed over the course of evolution. So 123412345 uh, possible, uh, five possible times that blasted for blessed. So at least four branches of Oh, my bad five. So you see one branch here, then a branch here too. And then let us now count all of the now let us count how many times the blast support fate has changed over the course of evolution. So ancestral feet is most likely neither proto stone or due to her stone. Still me were likely the ancestral fates. And we see that actually neither produce Omi or do tear. Um, so at this, at this node, we see it Diversions from, ah, from details. We just have to move backwards and see where the original branching off point waas that's here. All right, so now we have all the file labeled. Owns our sight are mostly, um, to tear systems, some purse Tums. Oh, uh, are all pursed ums in Arthur Pota are mostly purchased. And then out of the Ecto Act, I so so name it nematode. Assumes and Angelita are also mostly part assumes with few to tear stones. Esca are, uh, mostly produce ums with a few to tear. We see we have a little branching off mill. Oh, Trick's oa o R body helmets are for two stones. And then it also asks us how many times has blasted poor fate changed over the course of evolution? All right, so if we go back to our our little apologetic tree, so looking at the table BC Acela's neither part of summer do terrorist ohm the do terrorist Omonia are of course, going to be to terrorists. In deuterostomes, the blastopore becomes the anus, whereas in protostomes the fate of the blastopore is highly variable (Figure 1A and see also Figure S1. Theories about the evolution of gastrulation often concern the fate of the blastopore (site of endomesoderm internalization), which varies widely in a major. What is the ancestral blessed support fate. Um, and it wants us to answer the question off. And these are talking about the blast of poor fates. Um, with P D and or a combination of those letters and p for court, Of course, is referring to Curtis Tony D to do Terry a stony and end to neither. I've already done that, and it wants us to label each branch that leads to a file. There you go Is too redraw the Violet Terrian portion of figure 332.11 for the nine file of below. All right, so what this question is asking us to do is one second. And today I'm gonna be going over Problem number six from chapter 32 of the Campbell Biology textbook.
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