WorksheetsUnit 7 Anatomy of Frog
Total questions: 100
Worksheet time: 50mins
The largest internal organ in the frog is the:
Kidney
heart
lung
liver
The organ that has two atria and one ventricle is the:
Kidney
Heart
Lung
Liver
The organs with ducts that lead to the small intestine are the:
Heart and liver
Gall bladder and pancreas
Stomach and spleen
Kidney and large intestine
The hind leg is primarily for:
Support
Locomotion
Defense
None of these
The following are parts of the frog circulatory system except the:
Glottis
Ventricle
Atrium
Veins
The following are parts of the frog respiratory system except the:
Bronchi
Lung
Esophagus
Laryngotrachea
The cloaca receives all of the following materials except the:
Sperm
Digestive waste
Urine
Bile
The cloaca (opening) is found:
At the tail
In the nares
Under the eardrum
In the mouth
Five functional digits are found on the:
The forelegs only
The hind legs only
Both forelegs and hind legs
The digits of the frog are webbed on the:
Hind legs only
Forelegs only
Both the forelegs and hind legs
The enlarged finger on the foreleg for grasping in mating is found:
On the female only
On the male only
Both sexes
The tympanum is the:
Eyelid
Nostril
Eardrum
Vent
Sperm are produced by the:
Ovaries
Kidneys
Small intestine
Testes
The internal nares open into the:
Cloaca
Mouth
Stomach
Esophagus
The dorsal side of a frog is:
Lighter than the ventral
Darker than the ventral
The same color
The brain of the frog is:
Small and round
Large and round
Small and round
Narrow and long
The stomach in the frog is:
Smaller than the large intestine
Smaller than the pancreas
Is large and long
Is large and round
The fat bodies in the frog are:
White and hard
Small, like a pea and green
Are brown like a kidney bean
Are yellow and soft
The mesentery of the frog is a tissue that:
Holds the intestine together
Lies near the kidney
Is very thick and strong
Covers the heart
The ventral side of the frog is:
Lighter than the dorsal
Darker than the dorsal
The same
Which feature moistens and protects the eye?
Chromatophore
tympanum
nictitating membrane
nares
The change that tadpoles undergo to become an adult frog is called ___.
metamorphosis
respiration
growth
hibernation
Which picture shows the dorsal side of the bullfrog?
Left
Right
Find the location of the abdomen.
1
2
3
Find the location of the cloaca.
1
2
3
4
Find the location of the leg.
1
2
3
Find the location of an eye.
1
2
3
4
What is this organ?
Heart
Lungs
Stomach
Bladder
What is this organ?
Heart
Lungs
Stomach
Bladder
What is this organ? (There's another one that is hidden)
Heart
Lungs
Stomach
Bladder
What is this organ?
Heart
Lungs
Stomach
Bladder
What is this organ?
Small Intestines
Large Intestines
Liver
Kidney
What is this organ?
Small Intestines
Large Intestines
Liver
Kidney
What is this organ?
Small Intestines
Large Intestines
Liver
Kidney
Which picture shows the ventral side of the bullfrog?
Left
Right
What is this organ?
Small Intestines
Large Intestines
Liver
Kidney
Where do frogs store energy?
fat bodies
stomach
liver
fatty tissue in the skin, like humans
Which organ do frogs and tadpoles NOT use when they breathe?
skin
lungs
gills
diaphragm
A frogs eardrum that is on the outside of their head is called?
Ear
Tympanic Membrane or Tympanum
Nares
Cloaca
Covering the frogs eye is a transparent third eyelid that protects the frog when it swims and eats. It is called...
Lid membrane
Nares
Cloaca
Nictitating Membrane
A frog breathes through these small slits that can be found both internally and externally on the frogs head.
Air holes
Eustachian Tube
Nares
Cloaca
True or False? The dorsal side is the top of the frog.
True
False
Your frog has both forelegs and hind legs, which one has webbed toes?
Forelegs
Hind Legs
A frog uses their tongue to capture its prey. Is it attached at the front of the mouth or at the back?
Front
Back
Identify the part of the frog labeled by the #4. This part allows food to pass from the mouth to the stomach.
Glottis
Esophagus
Nares
Eustachian tubes
Identify the part of the frog labeled by the number #6. This part allows air to go into the frogs lungs.
Eustachian Tubes
Esophagus
Glottis
Nares
Identify the part of the frog labeled by the #8. This part is used to grasp prey.
Maxillary Teeth
Jaw
Vomerine Teeth
Glottis
True or False: Frogs chew their food before they swallow it.
True
False
Male or Female?
Female
male
What organ did you use to identify the sex of the frog?
testicles
testes
ovaries
oviducts
Male or Female?
Male
Female
What organs helps to identify the sex of the frog?
kidney
oviduct
ovaries
testes
What external structures would the frog have if it was a male?
testicles
testes
enlarged thumb pad
vocal sacs
The teeth of the frog are not for chewing. What could they be used for?
Scare predators
hold the prey
protection from predators
attract potential mates
The blood of a frog is oxygen poor. What structure of the frog helps it get oxygen from the water it swims in?
gills
lungs
skin
eyelid
Frogs have a special, translucent eyelid membrane (like goggles) that covers the eye and protects it while the frog is under water. What is this membrane called?
Tympanic Membrane
Nictitating Membrane
Goggle Membrane
Optic Membrane
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.
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
What is the largest, strongest muscle group found in the common frog?
The Heart Muscles
The Liver Muscles
The Abdominal Muscles
The Leg Muscles
Which of the following best describes the special adaptation of a frog tongue?
It attaches at the front of the mouth so that it can flip out to catch prey.
It attaches at the front of the mouth so that it can be used to create sounds that attract mates.
It attaches at the back of the mouth so that it can flip out to catch prey.
It attaches at the back of the mouth so that it can swallow its prey whole.
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
What is a special feature of a frog's skin, that allows it to live in water?
The skin is thin and smooth and can allow oxygen from the water to enter the frogs blood.
The skin is thin and smooth and protects it from predetors with sharp teeth.
The skin is thick and rough and acts as an armor against all predators that might eat it.
The skin thick and rough and provides friction while the frog is swimming to help it balance.
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.
What are the yellow, spaghetti shaped structures that were located on both sides of the frog?
Fat Bodies
Large Intestines
Lung Pockets
Liver Muscles
