Which of these phylogenetic trees MATCH (i.e. show these...

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00:01 Okay, so we need to figure out which of these phylogenetic trees match, meaning they show the same evolutionary relationships.

00:09 Please choose the letter of all trees that match each other.

00:13 So let's go ahead and take a look at, i've already drawn a.

00:16 So a, we see here is actually showing that square is the furthest out, followed by triangle, then circle and hearts.

00:27 So the circle and heart are the most closely related.

00:33 The thing about phylogenetic trees is that the whole thing can rotate.

00:44 So instead of square a circle and heart here, we can actually have heart and circle.

00:48 That's possible.

00:51 This triangle, whole thing can rotate on this axis, right? so we can have something like this happen.

01:07 Square, heart circle, triangle.

01:12 Triangle.

01:15 All we've done is basically rotate this triangle and we've rotated this, right, still the same evolutionary information.

01:26 Okay? because evolutionary information is determined from the distance from the common ancestor here, which i've highlighted.

01:38 And so the distance between square and triangle is still the same.

01:43 Right.

01:44 So based on that, so based on that, let's take a look at our options...

Which of these phylogenetic trees MATCH (i.e. show these same evolutionary relationships)? Please choose the letters of ALL trees that match each other.