Unit 9 Classification

Use the phylogenetic tree.  Which hypothetical organism is the most recent ancestor for Organisms A and G?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-LS4-2

What can a classification system show about an organism?

• absolute age of an organism
• what an organism is made of
• its relationship to other organisms
• which organisms are the strongest

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Panthera leo, the scientific name for a lion, is a member of which species?

• leo
• Animalia
• Panthera
• mammalia

Tags

NGSS.MS-LS4-2

An organism identified with binomial nomenclature includes which two taxa?

• class and order
• family and genus
• genus and species
• kingdom and phylum

Canis lupus, the scientific name for a wolf, is in which genus?

• Canis
• lupus
• Animalia
• mammalia

What role did Linnaeus play in classification of organisms?

• He classified all life into plants and animals.
• He classified all life by where organisms lived.
• He started naming organisms using binomial nomenclature.
• He utilized DNA technology to form the modern system of naming.

The table shows some characteristics of four kingdoms.
Which characteristics would a taxonomist use to classify organisms as Archaebacteria or as Eubacteria?

• the internal organization of the cell
• the number of cells in an individual
• the chemical composition of the cell wall
• the nutritional requirements of the organism

Which is used most to determine a true common ancestor for a group of organisms?

• karyotype
• dichotomous key
• phylogenetic tree
• mRNA codon chart

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

How would a dichotomous key be used?

• by inserting it into a chamber at a 45 degree angle
• by observing specimens and then answering questions about them
• by comparing the colors on a strip to the colors obtained during testing
• by analyzing a gel agar and recording the distance each fragment had traveled

Which can be inferred by viewing a phylogenetic tree?

• ancestral lineages
• color variation in species
• food choice of an organism
• probability of extinction in a population

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3