Frog Dissection

During the frog dissection lab, some students found these small round structures inside their frog (pictured). What do these structures tell us about this particular frog?

• These are eggs. This frog is a female.

• These are eggs. This frog is a male.

• These are bugs. This frog ate just before it died.

• These are bugs. This frog is being eaten by scavengers.

Identify the internal frog organ that is shown (in color) in this picture. It is the largest internal organ in both humans and the frog.

• Lung

• Liver

• Heart

• Stomach

The frog has maxillary teeth and vomerine teeth in its mouth. What is the function of the frog's teeth?

• The teeth are used for grinding up its food.

• The teeth are used for smiling during school picture day.

• The teeth are used for gripping and holding prey.

• The teeth are used for filtering food out of the water.

Which of the following is NOT true?

• A frog's tongue is attached at the front of its mouth.

• A frog's lungs are used for filtering oxygen from the water.

• A frog's webbed feet are used for swimming.

• A female frog may have eggs inside her body cavity when opened.

Which of the following best describes a frog's hind legs and feet?

• The legs are strong and the feet are webbed for swimming.

• The legs are strong and the feet have claws for climbing.

• The legs are strong and the feet have hairs for warmth.

• The legs are strong and the feet have six digits for balance while jumping.

Which class of animal does the frog belong to?

• Amphibian

• Mammal

• Reptile

• Avian

What is the largest, strongest muscle group found in the common frog?

• The Heart Muscles

• The Liver Muscles

• The Abdominal Muscles

• The Leg Muscles

Just behind the eye, a specialized membrane, adapted for life in and out of water, serves as the frog's ear. What is this membrane called?

• Nictitating Membrane

• Tympanic Membrane

• Skin Membrane

• Ocular Membrane

Why is it important to treat the frog's body with respect during a dissection lab?

• The frog was a living creature and we are using its body to learn about how it functions.

• The frog is not an important part of our ecosystem and is not needed on our planet.

• Mutilating the frog is ok and we do not need to treat the frog with respect.

• Frogs are pests that do not contribute anything positive to our world.

Frogs have vertebrae (bones) that form a spinal column down their back. What body system is shown in this picture?

• Skeletal System

• Muscular System

• Digestive System

• Integumentary System