BIOL1307 Lecture 3 Tobola

A diagram used to reflect evolutionary relationships among organisms or a

group of organisms.

• Phylogenetic Tree

• Geological Tree

• Family Tree

• Taxonomic Tree

Tags

NGSS.HS-LS4-1

Concrete confirmation of past relationships can

be provided.

• True

• False

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-5

These indicate a single ancestral lineage and branching points of when divergence occurred.

• Rooted Tree

• Unrooted tree

Tags

NGSS.HS-LS4-1

These show that divergence has occurred, it does not speculate as to when it occurred.

• Rooted Tree

• Unrooted tree

What do the length of the branches on a phylogenetic tree represent?

• The time it took for convergence to be completed

• The time it took for divergence to be completed

• The time it took for the organism to deliver the offspring

• The organisms life span

Match the following

• when a new distinct lineage is
  thought to have emerged

• sister taxa

• When multiple lineages split from a single branch point

• basal taxon

• the one that diverged early from the root

• branch point

• When two lineages stem from the same branch

• polytomy

The field that scientists use to organize and classify

organisms based on evolutionary relationships.

• Biology

• Phylogeny

• Genetics

• Systematics

Tags

NGSS.MS-LS4-2

Where does the information that builds phylogenetic trees come from?

• Soil samples

• Written information from the past

• Fossils

• Textbook

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-3

All phylogenetic trees are hypotheses, they are constantly

changing with new information.

• True

• False

The science of classifying organisms to construct internationally shared classification systems with each organism placed into increasingly more inclusive groups.

• Taxonomy

• Systematics

• Biology

• Geology