An elf, a dwarf, a hobbit, a wizard, and a man are sitting in a line. how many different ways can they sit if the elf and the dwarf insist on sitting next to each other?

The number of ways 4 characters can sit = 24 ways

Elf and dwarf can exchange their position between them.

24*2 = 48 ways...

Step-by-step explanation:

An elf, a dwarf, a hobbit, a wizard, and a man are sitting in a line.

There are total 5 characters in this statement.

If the elf and the dwarf insist on sitting next to each other. Treat elf and dwarf as one unique character, due to they will sit next to each other.

The number of ways 4 characters can sit = 4!

4!= 4*3*2*1 = 24 ways

Multiply 24 by 2 to show that  elf and dwarf can exchange their position between them.

24*2 = 48 ways...

it could be 1,3 and more others to create a cylinder.

step-by-step explanation:

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.