The following six students – Andy, Betty, Chris, Frank, Mark and Mary are standing in line outside of a classroom: Chris, the last one in line, is right behind Andy; Mark is between Mary and Betty; Frank, who is one ahead of Betty, is the first one in line. Where is Mary in the line? Second Third Fourth Fifth

Mary is in the line at Fourth position.

Given that,

The following six students – Andy, Betty, Chris, Frank, Mark, and Mary are standing in line outside of a classroom:

Chris, the last one in line, is right behind Andy;

Mark is between Mary and Betty;

Frank, who is one ahead of Betty, is the first one in line.

We have to determine,

Where is Mary in the line?

According to the question,

All you have to do is understand each information clearly and write it down to help you picture out the problem.

After doing so, you will find that the correct order of people in the line is

Taking the restrictions, we place the names on a list.

Chris, the last one in line is right behind Andy.

Chris is in the last position in the line.

Frank, who is one ahead of Betty, is the first one in line.

Frank is in the first position in the line.

Mark is between Mary and Betty.

Position of Betty after Frank and position of Mary after Andy and the position Mark is between Mary and Betty.

Hence, The correct order is Frank -> Betty -> Mark  -> Mary -> Andy -> Chris.

For more details refer to the link given below.

link

(C) Fourth

Step-by-step explanation:

Taking the restrictions, we place the names on a list.

Chris, the last one in line is right behind Andy

Frank, who is one ahead of Betty, is the first one in line.

Mark is between Mary and Betty

7200

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the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.