Classification

09/20/2013 GN

“In natural science the principle of truth ought to be confirmed by observation” Carolus Linnaeus.

Frog Taxonomy: ­ Kingdom: Animalia ­ Phylum: Chordata ­ Sub­ phylum: ­ Class: Amphibia ­ Order: Anura ­ Family: Mostly Dendrobatidae ­ Genus: Varies ­ Species: Varies

Venn Diagram:

Frog Anatomy:

Organs/Body parts

Functions

Ankle

Help support walking and jumping

Thigh

Aids in movements

Hind legs

Jumping, climbing, swimming and

digging Foot

They provide the frog a larger area to push against water

Upper arm

Helps him jump, swim, and pad through water

Blow spot

Light sensitive eyes, charactering primitive groups of fishes and amphibians

Absence of tail

Frogs don’t have tail to assist with movement and balance

Web

Helps them swim in water

Sticky fingers

Aids the frog climb slippery trees

Hands

Determines the frog’s sex

External nares

Uses it for breathing when swimming

Head

Receives sound waves through the tympanic membrane

Mouth

Traps insects

Tongue

Catches the insects and brings it back into the mouth

Skin

For protection, respiration and can absorb water and oxygen

Tympanum

Serves to equalize pressure within, hearing

Notes: ­ Croaking is an sound made by frogs. frogs croak either to attract females

or to repel other males from a territory. ­ By observing the frog’s foot, scientist have been able to create flippers.

Dichotomous Key / Organisms Identification Key An dichotomous key is an series of question, indicating specific characteristics of given organisms. By following the key, you would be able to identify the organism.

Begin here: ­ Organism does not have an tail …….. use frog key ­ Organism does have tail ……. use salamander key Frog dichotomous key 1. Short body …… (2) 1. camouflage ……. (3) 2. Brightly colored (6) A. Blue and cream coloring around the groin area as well as its orange feet ……. (5)

B. Brightly yellow ……. Golden poison frog C. Brilliant orange …….. (4) 2. Hugely bloated body and short, stout limbs ……. Purple Frog 3. Upper parts are blackish brown/mud brown …….. (4) 4. Bumpy looking skin …….. Golden Toad 4. Triangular head and has an long body ……… Surinam Toad 5. Red­ eyed …….. (7) 5. Does not have webbed feet ……… Pouched Frog 6. Orangish arms and legs …….. Rainforest Rockets Frog 6. Bright red body …….. (7) 7. Blue legs ……. Strawberry Dart Frog 7. Bright green ……. Tree Frog Salamander dichotomous key 1. Grey or brownish ­ gray with blue black spots …….. Mudpuppy 1. Blackish body ……. Newt “ In natural science the principles of truth ought to be confirmed by observation.” Carolus Linnaeus.

An dichotomous key is an series of question, indicating specific characteristics of given organisms. By following the key, you would be able

to identify the organism. Before creating an dichotomous key, you must observe the different characteristics of the specimen.

CITATIONS: ­ “ Frog Research. “frog research. N.P., n.d. web. 11 September. 2013. ­ Wikipedia contributors. “ Newt.” Wikipedia, The free Encyclopedia, 12 September 2013. Web. 11 September . 2013. ­ Danielle Elliot. “ Gardiner’s frogs hear through their mouths, Researchers say.” CBS Interactive. 3 September 2013. Web. 11 September. 2013. ­ “ Explore 100 famous scientists Quotes Pages.” Carolus Linnaeus quotes. N.p, n.d web. 11 September. 2013.

Carl Linnaeus quote: Philosophia Botanica 1751, final sentence. Trans. Frans. A. Stafleus, Linnaeus and the Linnaean: The spreading of their itec sin systematic Botany its 1735 ­ 1789.