Systems of Classification Lesson

Lesson 5: Classification System PART 2

April 20, 2021- Cycle 9, Meeting 27

Multiple Choice

How many species live on Earth?

• Thousands

• Millions

• Billions

• Trillions

Multiple Select

You need these three fields of Biology for you to understand the biodiversity of life forms on earth:

• Anatomy

• Evolution

• Genetics

• Physiology

• Taxonomy

Classifying Organisms

• Identify

• Name

• Classify it in relation to other living organisms

Ways of Classifying Organisms

• Anatomical features

• Embryological similarities

• Phylogenetic relationship

Grasshopper = Orthoptera, Walking stick = Phasmatodea

Multiple Select

Naturalists/taxonomists who classified organisms based on anatomical similarities?

• Aristotle

• Darwin

• Haeckel

• Linnaeus

• Mendel

Poll

Would you rename yourself given the chance?

• Yes

• No

Multiple Select

What 3 characteristics are used to classify organisms?

• Cell structure

• Mode of nutrition

• Cellularity

• Movement

• Habitat

Examples of chemoautotrophs are sulfur-oxidizing bacteria, nitrogen-fixing bacteria (ex. Cyanobacteria) and iron-oxidizing bacteria. 

Multiple Choice

The scientific name of a horse is Equus callabux. What is the genus name of the horse?

• Equus callabux

• callabux

• Equus

• Animalia

Multiple Choice

Of the taxa listed, which is the most specific?

• Kingdom

• Phylum

• Class

• Order

Multiple Choice

Which scientist accurately classified organisms by analyzing their DNA?

• Linnaeus

• Haeckel

• Whittacker

• Woese

Multiple Choice

The 4 eukaryote kingdoms are:

• Animals, Fungi, Plants, and Protists

• Archaebacteria, Eubacteria, Fungi, and Protists

• Archaebacteria, Protists, Fungi, and Plants

• Animals, Eubacteria, Fungi, and Plants

Multiple Choice

Scientists placed organisms into domains and kingdoms based on:

• cell type, number of cells, and how they grow

• cell type, number of cells. and how they get their energy

• movement, habitat, and body structure

• body structure, DNA sequence, and habitat

Multiple Choice

Which organisms are closely related?

• American badger and leopard

• European otter and leopard

• coyote and gray wolf

• coyote and american badger

Multiple Choice

Which characteristics best describe the Plant Kingdom?

• unicellular; eukaryote; autotroph

• multicellular, eukaryote, autotroph

• multicellular, prokaryote, autotroph

• unicellular, prokaryote, heterotroph

Cont. Ways of Classifying Organisms

• Phylogenetic relationship

Multiple Choice

Which group on the cladogram appeared FIRST?

• Allosaurus

• Robin

• Theropods

• Velociraptor

Multiple Choice

According to the diagram, what is the common ancestor of ALL organisms on the phylogenetic tree?

• B

• C

• D

• E

Multiple Choice

According to the diagram, what was the last common ancestor of organisms 2 and 3?

• A

• B

• C

• D

Multiple Choice

According to the cladogram, which of the following is NOT a derived character?

• 3-toed foot; wishbone

• Allosaurus

• down feathers

• light bones

Multiple Select

Which traits are shared by Archaeopteryx and (Robin) modern birds (select 3)?

• down feathers

• feathers with shaft, veins, and barbs

• flight feathers; arms as long as legs

• 3-toed foot; wishbone

Multiple Select

Which groups have feathers (select 3)?

• Archaeopteryx

• Robin (modern birds)

• Sinornis

• Velociraptor

Multiple Select

What are the derived characters of Sinornis (select 2)?

• 3-toed foot; wishbone

• down feathers

• feathers with shaft, veins, and barbs

• light bones

Multiple Choice

Based on the diagram, which organism is most closely related to organism 3?

• 4

• 2

• 1

• 5

Multiple Choice

According to the diagram, which organism is LEAST related to the others?

• 2

• 3

• 4

• 5

Open Ended

How would you differentiate Linnaean from Phylogenetic Classification System?

Open Ended

Write down any question you may still have... GO!

Reminders: Quiz 4

• Date: April 21, 2021; 2 p.m.

• Offline: socrative.com Room name: STEM2021

Deadline reminders:

• IPT due on May 7 instead of April 28