Dissection

What is the defining characteristic of the Domain Eukarya?

Their cells are Eukaryotic, meaning they have a true nucleus with a membrane-bound structure.

What are the three orders of Class Amphibia?

The three orders are Apoda (Caecilians), Urodela (salamanders, newts), and Anura (frogs, toads).

What are Caecilians and how do they appear?

Caecilians are legless amphibians that resemble segmented worms.

What is the function of Tympanic membranes in frogs?

Tympanic membranes serve as the eardrums for frogs.

What does the Glottis do in a frog's mouth?

It is a vertical slit that leads to the lungs and can collapse in preserved animals.

How do frogs capture their prey?

Frogs use their long, sticky tongues to grab hold of prey.

What are the two main types of teeth found in frogs?

Vomerine teeth, located in the front of the mouth on the roof, and Maxillary teeth, which line the roof of the mouth.

What is the function of the Eustachian tube openings in frogs?

They regulate air pressure in the ear to prevent the eardrum from bursting.

What is the role of bile in the frog's digestive system?

Bile breaks apart fat and is produced by the liver.

How do frogs excrete nitrogen waste?

They convert nitrogen waste to urea acid and filter it out with the kidneys.

What is Amplexus in frogs?

Amplexus is when the male frog uses his front legs to help the female expel her eggs.

What are the primary respiratory adaptations of frogs as they grow from tadpoles to adults?

Tadpoles use gills to breathe underwater, while adults use lungs for breathing.

How does the circulatory system of a frog adapt from tadpole to adult?

Tadpoles have a two-chambered heart, while adults have a three-chambered heart.

What functions do the front legs of a frog serve?

They help the animal to walk, absorb shock from jumping, and prop up the body.

What adaptations do the back legs of frogs have for their lifestyle?

They have five toes with webbing, fused lower leg bones for strength, and developed muscles for jumping and swimming.