yacomine essential+biology+05.5+ +classification

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 identify and classify organisms based on their characteristics.

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 diverse

Kingdom Kgdm Plantae Animalia

Phylum Phm Angiosperms Chordata

Class Cls Liliopsida Mammalia

Order Ord Asparagales Primates

Family Fam Hycinthaceae Hominidae

MostSpecific

Genus Gen Hycinthoides Homo

speciesSpes

Non-scripta Sapiens

3. Define species. Species are the most specific taxon when classifying organisms. They are the second

word of the binomial nomenclature scientific name for an organism.

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

Binomial nomenclature consists of two words, the genus name and the species name. The genus name begins with a capital letter and the species name begins with a common

letter. In typed or printed text, the binomial is in italics. The earliest published name for a species, from 1753 onwards, is the correct one.

Eschericia coli

E. coli

Stephen Taylor http://sciencevideos.wordpress.com

http://sciencevideos.wordpress.com/

http://www.learner.org/courses/envsci/

http://click4biology.info/c4b/5/eco5.5.htm


Homo sapiens

H. Sapiens

5. Distinguish between heterotrophy and autotrophy. Which feeding method is represented by the Kingdom Plantae and which by the Kingdom Animalia?

Heterotrophy is when organisms consume other organisms for food, while autotrophy is when organisms make their own food. The Kingdom Plantae is represented by autotrophy and the Kingdom Animalia is represented by heterotrophy

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


No symmetry

Radial symmetry

Bilateral

Bilateral

Bilateral

Bilateral

Pores draw in water for filter feeding

Vary varied shapes.

Tentacles arranged in the ring of the mouth.

Flat and thin bodies in the shape of a ribbon.

A fold in the body wall called the mantle secretes the shell.

Bodies made up of many ring-shaped segments, often with bristles.

Segmented bodies and legs or other appendages with joints between the sections.

Hard rasping radula

It feeds with its mouth

It absorbs food through the skin

Passes soil through the gut

Uses pincers to tear off what they eat.

None

None

None

Ring-shaped, often with bristles.

None

Joints between sections of


http://www.scenicoregon.com/webanic/pages/map.html

http://www.scenicoregon.com/webanic/pages/animals.html


9. Distinguish between these terms:

Radial symmetry vs Bilateral symmetry vs Asymmetrical

Radial symmetry is when the skeleton of the animal is a circular pattern, bilateral symmetry is when one half of the skeleton is a mirrored copy of the other half of the skeleton,

Motile vs Sessile

Motile organisms can move about and sessile organisms cannot move.

10. Design and apply a dichotomous key to distinguish between these Queensland shark species:



http://www.dpi.qld.gov.au/cps/rde/dpi/hs.xsl/28_11934_ENA_HTML.htm


11. Look at the species names for the sharks in the chart. a. Which of the following pairs is most closely related?

A. Black Tip Reef Shark and White SharkB. Grey Reef Shark and Shortfin MakoC. Grey Reef Shark and WingheadD. Creek Whaler and Black Tip Reef Shark

b. Explain your answer to a. I chose the Creek Whaler and Black Tip Reef Shark because they are both a member of the same genus, Carcharhinus.

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

A. i onlyB. i and iiC. ii and iiiD. 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 speciesii. They are part of the same genusiii. They are part of the same classiv. They are part of the same kingdom

B. i onlyC. i and iiD. ii and iiiE. iii and iv



yacomine essential+biology+05.5+ +classification

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