Sources to Use: Allot Text (P205-210), Click4biology, Class Presentations, the Habitable

Essential Biology 5.5: Classification

Sources to use: Allot text (p205-210), Click4Biology, Class presentations, The Habitable Planet (http://www.learner.org/courses/envsci/)

1. Define taxonomy.

Taxonomy is how scientists define and classify organisms into groups and depending on their physical similarities.

2. In the table below, list the seven levels in the hierarchy of taxa and design an acronym to help

you remember them. Using two examples from different kingdoms give all seven levels.

Hierarchical level ACRONYM PLANT Example: ANIMAL Example: Most Kingdom K.G.M Plantae Animalia P.L.M diverse Phylum Angiosperms Chordata

Class C.L.S Liliopsida mammalia Order O.D.R Asparagales Primate Family F.M.L Hycinthaceae Hominidae Genus G.N.S Hycinthoides Homo S.P.S

Most species Non-scripta sapien

Specific

3. Define species.

Species is a particular category of taxonomic classification that ranks below a genus or subgenus and consisting of related organisms capable of interbreeding.

Stephen Taylor http://sciencevideos.wordpress.com Essential Biology 5.5: Classification

4. In the space below, explain how the Linnean binomial system of nomenclature works, paying

attention to formatting conventions.

Eschericia coli- The first name is the Genus and the second name is the species. The

Genus always comes first and begins with a capital letter whereas the species name begins with a lower

E. coli-This is the abbreviated form of Eschericia coli. If you are writing about Eschericia coli then you can abbreviate it as long as you have the full name before in the paragraph.

Homo sapiens -can be abbreviated to H. sapien

5. Distinguish between heterotrophy and autotrophy. Which feeding method is represented by the

Kingdom Plantae and which by the Kingdom Animalia?

Heterotrophs- organisms that consume other organisms for food. (Kingdom Animalia)

Autotrophs- organisms that make their own food .(Kingdom Plantae)

6. Distinguish between the following phyla of plants, using external characteristics. Give examples.

7. Have a go at using a dichotomous key here:

http://www.scenicoregon.com/webanic/pages/animals.html Take the opportunity to build your vocabulary while completing this task.

Think of an animal, answer the questions and work through the classification.

8. Distinguish between the following phyla of animals, using external recognition features and giving examples. Check your answers here: http://www.scenicoregon.com/webanic/pages/map.html

9. Distinguish between these terms:

Radial symmetry vs Bilateral symmetry vs Asymmetrical

Radial- circular symmetry

Bilateral- the left side is a copy of the right side.

Asymetrical- both sides are not the same as the other.

Motile vs Sessile

Motile- organisms that are able to move around actively and without a partner which helps them to consume energy during the process.

Sessile- organisms that only stay in one place and does not move around.

10. Design and apply a dichotomous key to distinguish between these

Queensland shark species:

11. Look at the species names for the sharks in the chart.

a. Which of the following pairs is most closely related?

a.A.Black Tip Reef Shark and White Shark

a.B.Grey Reef Shark and Shortfin Mako

a.C.Grey Reef Shark and Winghead

a.D.Creek Whaler and Black Tip Reef Shark

b. Explain your answer to a.

They are in the same Genus.

c. Which of the following is/are true for the Great Hammerhead and Scalloped Hammerhead?

i. They are two subspecies of the same species

ii. They are two species in the same genus

iii. They are members of the same order

iv. They are from different phyla

c.A. i only

c.B. i and ii

c.C. ii and iii

c.D.iv only

d. Which of the following is/are true of all of the sharks in the chart?

i. They are members of the same species

d.A.ii. They are part of the same genus

d.A.iii. They are part of the same class

d.A.iv. They are part of the same kingdom

d.B.i only

d.C.i and ii

d.D. ii and iii

d.E.iii and iv

Stephen Taylor http://sciencevideos.wordpress.com