Question

In a cladogram, when does a group of organisms branch off? when a new trait evolves when an ancestor becomes extinct when it is discovered when it becomes large enough

Answer 1

The correct answer is when a new trait evolves.  

Cladogram refers to an image representation, which shows relationships/connections amongst the different species. It demonstrates the evolutionary association between the species. The tree-like composition may vary when a node is positioned in the cladogram, that point is called a point of divergence.  

The diagram shows lines that branch off in distinct directions and which end up at a clade. A group of living species sharing a last common ancestor is known as the clade. In a cladogram, a group of species branches off when a new trait evolves.  

Answer 2

In a cladogram, an organism’s group branches off from the common point when there is a new trait that evolves in the organism.

This point in the cladogram where the branching off takes place, is the point of origin of a new variation in the organism and also is the point where the two branches of the organism share a common ancestry.