4/11 warm-up

What is a cladogram primarily used for in biology?

• To show the physical characteristics of species

• To illustrate evolutionary relationships between species

• To measure the age of fossils

• To display the geographical distribution of species

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

How does a phylogenetic tree differ from a cladogram?

• A phylogenetic tree shows only extinct species

• A phylogenetic tree includes information about the time of divergence

• A cladogram shows the genetic makeup of species

• A cladogram is used only for plants

Which of the following best describes a common ancestor in a cladogram?

• The most recent species at the top of the diagram

• A species that shares traits with all the species in the cladogram

• The oldest species found in the fossil record

• A hypothetical species from which two or more species evolved

Tags

NGSS.MS-LS4-2

When interpreting a phylogenetic tree, what does a branch point represent?

• The extinction of a species

• The discovery of a new species

• A common ancestor of the descendant species

• The geographical location of a species

Tags

NGSS.MS-LS4-2

What does it mean if two species are located close together on a cladogram?

• They are the same species

• They have a recent common ancestor

• They live in the same habitat

• They have identical diets

Tags

NGSS.MS-LS4-2

In a phylogenetic tree, what does the length of a branch typically represent?

• The number of species in a group

• The time since the last common ancestor

• The size of the species

• The number of offspring produced

Which of the following is a key concept in understanding common ancestry?

• All species have unique ancestors

• Different species can share a common ancestor

• Common ancestors are always extinct

• Only animals have common ancestors

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3