Phylogenetic Trees and Cladograms

Two organisms that are closely related would have:

• very similar DNA sequence.

• exactly the same DNA sequences.

• no proteins in common.

• completely different DNA sequences.

Tags

Biochemical evidence

According to this phylogenetic tree, which species is the least related out of all pictured?

• fish

• frog

• salamander

• human

Tags

Phylogenetic tree

Which two groups of organisms have the MOST genetic DIFFERENCES?

• rotifers and nematodes

• mollusks and annelids

• mollusks and arthropods

• echinoderms and chordates

Tags

Phylogenetic tree

The diagram shows a cladogram of six species based on amino acid similarities. Which two species are MOST CLOSELY related?

• I and II

• II and IV

• I and V

• V and VI

Tags

Phylogenetic tree

What number is the common ancestor of species C and D?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS4-2

Which species is most closely related to Taxidea taxus?

• Lutra lutra

• Panthera pardus

• Canis latrans

• Canis lupus

Tags

NGSS.MS-LS4-2

What is the common ancestor of Letters A, B, C, D, E?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

Based on the phylogenetic tree, what organism is the human most closely related to?

• fish

• mouse

• salamander

• human

Tags

NGSS.MS-LS4-2

What do both the squirrel and lion have in common that the other organisms do not have?

• They are both vertebrates.

• They both have lungs.

• They are both mammals.

• They both lose their canine teeth.

Tags

NGSS.MS-LS4-2

What do amphibians, birds, prosimians and humans all have in common? Check all that apply.

• hair

• endothermic

• Eukaryotic

• tetrapod

• vertebrate

Tags

NGSS.MS-LS4-2