Animal Classification Lab Activities

<p>Pancreas (A)</p> Signup and view all the answers

<p>To hold blood (A)</p> Signup and view all the answers

<p>Small intestine (C)</p> Signup and view all the answers

<p>Lungs (C)</p> Signup and view all the answers

<p>Cloca (A)</p> Signup and view all the answers

<p>Medial axial and peripheral appendicular (B)</p> Signup and view all the answers

<p>They are easy to observe in their natural habitat. (B)</p> Signup and view all the answers

<p>On the dissection tray with its dorsal side facing up (A)</p> Signup and view all the answers

<p>Head and trunk (D)</p> Signup and view all the answers

<p>Toads can be identified easily from frogs. (D)</p> Signup and view all the answers

<p>Their structures can be easily demonstrated. (A)</p> Signup and view all the answers

<p>Toad and frog (D)</p> Signup and view all the answers

<p>To observe and classify frogs within the animal kingdom. (B)</p> Signup and view all the answers

<p>To protect the eyes from debris (D)</p> Signup and view all the answers

<p>Rough, warty, and light colored skin (A)</p> Signup and view all the answers

<p>They produce toxins for defense (B)</p> Signup and view all the answers

<p>Oval and broad (D)</p> Signup and view all the answers

<p>Longer legs are used for jumping and escaping (D)</p> Signup and view all the answers

<p>In rocky, stony places (B)</p> Signup and view all the answers

<p>Pointed and elongated (B)</p> Signup and view all the answers

<p>To increase surface area for propulsion (D)</p> Signup and view all the answers

<p>To destroy sensory perception by severing the brain and spinal cord (B)</p> Signup and view all the answers

<p>Dissecting pan, dissecting set, chloroform, and live frog (C)</p> Signup and view all the answers

<p>Ventral side up with feet extended (C)</p> Signup and view all the answers

<p>Using undue pressure on the frog's skin (C)</p> Signup and view all the answers

<p>Along the midline of the body and towards the forelimbs (A)</p> Signup and view all the answers

<p>Eggs (C)</p> Signup and view all the answers

<p>Bright orange or yellow (A)</p> Signup and view all the answers

<p>Kidneys (A)</p> Signup and view all the answers

<p>To equalize pressure in the inner ear (A)</p> Signup and view all the answers

<p>The stomach (B)</p> Signup and view all the answers

<p>Pin it in a dissecting pan (C)</p> Signup and view all the answers

<p>To document the dissection process (B)</p> Signup and view all the answers

<p>Put it back in the bottle or beaker (B)</p> Signup and view all the answers

<p>Tongue (C)</p> Signup and view all the answers

<p>It beats steadily and rhythmically (D)</p> Signup and view all the answers

<p>Pry the mouth open and cut the angles (B)</p> Signup and view all the answers

The frog's body is divided into a medial axial region (head and trunk) and a peripheral appendicular region (forelimbs and hindlimbs).

Frogs belong to the Phylum Chordata, Subphylum Vertebrata, and Class Amphibia.

Frogs and toads, while both amphibians, have distinct characteristics.

The visible parts of the frog's body are studied.

The head and trunk of the frog make up this region of the body.

The forelimbs and hindlimbs of the frog are part of this region.

Observing the frog's back from above.

Describing the hierarchical grouping of animals based on shared characteristics, starting with broad categories.

To become familiar with the proper procedure for dissecting a frog or toad.

To dissect a frog/toad using the correct technique and procedure.

A procedure used to quickly and humanely euthanize frogs or toads by severing their brain and spinal cord.

The probe is inserted at the soft spot located at the end of the frog's skull.

Pithing ensures the frog can't feel pain or experience sensory phenomena during the dissection.

Placing the frog ventral side up in a dissecting pan.

Cutting through the abdominal muscles along the midline of the body to the forelimbs.

Making transverse (horizontal) cuts near the arms and legs to create flaps.

A transparent third eyelid that protects the frog's eye from drying out and debris while on land.

A thin, circular membrane located on either side of the frog's head, used for detecting vibrations in the surrounding environment.

Enlarged glands located near the tympanic membrane, secreting toxins for defense.

The toes of a frog are connected by webbing, aiding in swimming and propelling them through water.

A powerful and efficient method of locomotion, triggered by the extension of hindlimbs.

The hindlimbs are significantly larger and stronger than the forelimbs, providing powerful thrust for jumping.

Refer to the back (dorsal) and underside (ventral) of the frog's body, respectively.

Frogs breathe through their skin and lungs, taking in oxygen from both air and water.

The frog's tongue is attached to the front of its mouth, allowing it to shoot out and catch prey.

The esophagus is a tube in the frog's mouth that connects to the stomach, carrying food down.

The Eustachian tubes in a frog's mouth help balance inner ear pressure while swimming.

The frog's heartbeat can be observed and counted to understand its heart rate.

Describe the frog's heart beating, noting its rhythm and strength.

Compare the organs of the frog to those of a human, noting similarities and differences.

Create a drawing of the frog's mouth showing the location of the tongue, esophagus, and Eustachian tubes.

Preserving a frog specimen involves using formalin or ethanol for long-term storage.

The liver produces bile, a digestive juice that helps break down fats.

The gall bladder stores bile produced by the liver.

The stomach curves under the liver and is the first site of chemical digestion in the frog.

This valve regulates the flow of digested food from the stomach to the small intestine.

The small intestine consists of the duodenum (straight) and the ileum (curled).

The mesentery holds the ileum together and contains blood vessels that carry absorbed nutrients.

The large intestine widens the small intestine and leads to the cloaca, where waste exits the frog.

The spleen is a dark red organ that stores blood.