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Hello everybody.
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I hope you all are doing well and today i'll be helping you with the 16th problem of the chapter 29 problem set.
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So this question is asking who were the first mammals to evolve? so what you want to know first off is that the first mammals arose during the triassic period.
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So that's when people believe that the first mammals appeared and began to form.
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So for this one you'd really have to know between all of these which ones would most likely be the ones to come up.
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So we know that primates are a very recent evolution of type of mammal, so it's not a very simple one, or it's very complex.
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So it's not going to be one of the first ones to appear.
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So actually the first ones to appear would be monotreams, and you'd have to know this just based on just information and trying to purely know the memorization part of it.
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But after this came along, you would want to know that the marsupials came next.
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So marsupials were second.
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And then after that, you had the placental...