Draw the phylogenetic tree for the species below. Identify...

Draw the phylogenetic tree for the species below. Identify where on the tree each feature evolved. a. The ostrich branched off first, followed by the snake, then the frog, then the shark and then the lancelet. b. The shark branched off first, followed by the lancelet, then the frog, then the ostrich and then the snake. c. The lancelet branched off first, followed by the shark, then the frog, then the snake and then the ostrich. d. The lancelet branched off first, followed by the shark, then the ostrich, then the snake and then the frog.

Draw the phylogenetic tree for the species below. Identify where on the tree each feature evolved.
a. The ostrich branched off first, followed by the snake, then the frog, then the shark and then the
lancelet.
b. The shark branched off first, followed by the lancelet, then the frog, then the ostrich and then
the snake.
c. The lancelet branched off first, followed by the shark, then the frog, then the snake and then the ostrich.
d. The lancelet branched off first, followed by the shark, then the ostrich, then the snake and then the frog.

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Cladistics

Cladistics is an approach to classifying organisms based on common ancestry and shared derived characteristics, rather than superficial similarities. It provides the theoretical framework for constructing phylogenetic trees and understanding the pattern of evolutionary divergence.

Character Mapping

Character mapping involves overlaying evolutionary traits or features onto a phylogenetic tree to identify where specific innovations first appeared. This method helps in tracing the evolution of traits through the tree, revealing ancestral and derived conditions.

Branching Order and Divergence

Branching order refers to the sequence in which species split from a common ancestor. It helps determine which lineages are more basal (diverged earlier) and which are more derived (diverged later), providing insights into the evolutionary history of the group.

Phylogenetic Tree

A phylogenetic tree is a diagram that represents evolutionary relationships among different organisms. The branching pattern shows how species diverged from common ancestors over time, allowing scientists to reconstruct the sequence of evolutionary events.

Transcript

Please give Ace some feedback