00:01
So here we are going to start with question number 8.
00:04
So when we talk about a phylogenetic tree, a phylogenic tree is basically very important tree and this tree is rooted.
00:15
So we can say the phylogenic tree that is rooted is basically the base of that tree is located at the common ancestor.
00:26
So the base is located at a common ancestor at a point.
00:30
Particular ancestor in the generation of all the texas which is being depicted on the tree because a rooted tree, a rooted phylogenetic tree is basically it shows the evolutionary history of that particular, we can say a taxa, basically shows evolutionary history of group of organisms and how this group of organisms has evolved from that particular common ancestor.
00:57
And the basal node of this phylogenic tree is the root which represent the common ancestor, as i've already told, it represents the common ancestor, which are present at all the times.
01:13
And this also represents the oldest point of evolution of the tree, and this basically denotes the last ancestor, which lead to the evolution of this group of organisms.
01:25
And therefore we can say that a phylogenated tree which is rooted is one of them in which the base is located at the common ancestor of that particular texa.
01:37
So we can say for question number eight, option b is the correct answer.
01:42
Let's move on to question number nine.
01:45
For question number nine, when we talk about widely accepted taxonomical classification system, then this taxonomical classification system is very important because it begins with, starts with kingdom and it ends at species.
02:06
And the correct order of this particular system is that it starts with kingdom as i've already told you...