U2 Lab Practical: Anole Lizard Dissection

Last updated 5 months ago

26 questions

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Watch the following video.  NOTE: It does not have sound.

What is one reason for why anole lizards change color?

Because they want to stand out in their environments.

To attract mates only.

Because they are stressed.

To scare predators away.

What triggers anole lizards to change color?

Food availability in the area.

The presence of other lizards.

Changes in temperature and light.

Only fear or danger.

What is the main function of the small intestine in an anole lizard?

Waste storage

Gas exchange

Water filtration

Nutrient absorption and digestion

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This image shows the ____________  side of the anole lizard.

What is another name for the tympanic membrane?

auditory canal

eardrum

middle ear

ear flap

What is the primary function of the tympanic membrane?

To transmit sound vibrations

To produce earwax

To filter air

To balance pressure

When you watch the next video, it does have sound.  So, turn your volume down before you play it and/or use earbuds/headphones.  Thank you!

Why is the quadrate bone important for anole lizards?

Regulates body temperature

Functions as a weight support system

Aids in capturing and chewing food

Helps in camouflage

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Answer(s) Confidence Tracker:__________

Thank you for completing this Sum It Up!

What is one reason for why anole lizards change color?

Because they want to stand out in their environments.

To attract mates only.

Because they are stressed.

To scare predators away.

What triggers anole lizards to change color?

Food availability in the area.

The presence of other lizards.

Changes in temperature and light.

Only fear or danger.

The organ labeled "A" is primarily responsible for producing bile for the digestion of fats, storing energy in the form of glucose and lipids, detoxifying blood, and so much more. What is this organ called?

Liver

Heart

Lungs

Stomach

What system does this structure labeled “A” belong to?

Nervous system

Skeletal system

Digestive system

Respiratory system

What is the main function of the small intestine in an anole lizard?

Waste storage

Gas exchange

Water filtration

Nutrient absorption and digestion

How do "sticky" digits benefit anoles in their habitat?

They enable burrowing underground.

They help them swim faster.

They allow climbing on trees and walls.

They attract mates during breeding.

What unique feature do the anoles have on their digits?

Built-in suction for climbing.

Modified scales that have tiny hairs that increase grip on surfaces.

Large pads for better grip.

Color-changing to blend in.

Where is the structure labeled "B" located in the body?

Above the heart.

Between the esophagus and small intestine.

Next to the brain.

Within the lungs.

What is the function of acids and enzymes found in the structure labeled "B"?

To aid in breaking down food particles.

To absorb nutrients directly.

To kill all bacteria in the body.

To store food for longer periods.

Match the label letter to the anatomical structure.

Draggable item		Corresponding Item
H		external nares
G		eyelids
I		eye
J		tongue
E		teeth
F		external ear opening

Which structure is used for capturing prey?

What is the function of the structure labeled "F"?

Eyelids are to protect the eyes and keep them moist.

Mouth is for eating.

Nostrils are for breathing.

Skin is for camouflage.

What does the structure labeled "I" indicate about the lizard's diet?

Long tongue for catching insects.

Large mouth for swallowing.

Flat teeth for plants.

Sharp teeth help in eating insects and small animals.

What is another name for the tympanic membrane?

auditory canal

eardrum

middle ear

ear flap

What is the primary function of the tympanic membrane?

To transmit sound vibrations

To produce earwax

To filter air

To balance pressure

What is the name of the structure labeled "C"?

cloaca

heart

liver

small intestine

What helps this structure labeled "C" absorb nutrients effectively?

Bacterial breakdown

Mucus production

Muscle contractions

Villi increase surface area

Why is the quadrate bone important for anole lizards?

Regulates body temperature

Functions as a weight support system

Aids in capturing and chewing food

Helps in camouflage

What is the name of the organ, labeled letter "D," that is responsible for gas exchange in a lizard?

Heart

Gills

Skin

Lungs

What gases are exchanged in the anole lizard lungs? Check all that apply.

carbon dioxide

nitrogen

water vapor

oxygen

This anole lizard lost it's tail. Here is what it looks like under the dissecting microscope at the site of where the tail disconnected. Why do anole lizards detach their tails?

To swim better in water.

To lose weight easily.

To escape from predators quickly.

To grow larger faster.

What is the primary function of scales on anole lizards?

To help lizards swim faster.

To regulate body temperature.

For locomotion and movement.

To protect the skin from environmental damage.

The structure held in the forceps pumps blood throughout the body. What system does it belong to?

Digestive system

Nervous system

Circulatory system

Respiratory system

What is the name of the brightly colored structure? It's function is to attract mates and signal territory dominance.

lateral rectus

dewlap

quadrate bone

fatty tissue

The organ labeled "A" is primarily responsible for producing bile for the digestion of fats, storing energy in the form of glucose and lipids, detoxifying blood, and so much more.  What is this organ called?

Liver

Heart

Lungs

Stomach

What system does this structure labeled “A” belong to? 

Nervous system

Skeletal system

Digestive system

Respiratory system

How do "sticky" digits benefit anoles in their habitat?

They enable burrowing underground.

They help them swim faster.

They allow climbing on trees and walls.

They attract mates during breeding.

What unique feature do the anoles have on their digits?

Built-in suction for climbing.

Modified scales that have tiny hairs that increase grip on surfaces.

Large pads for better grip.

Color-changing to blend in.

Where is the structure labeled "B" located in the body?

Above the heart.

Between the esophagus and small intestine.

Next to the brain.

Within the lungs.

What is the function of acids and enzymes found in the structure labeled "B"?

To aid in breaking down food particles.

To absorb nutrients directly.

To kill all bacteria in the body.

To store food for longer periods.

Match the label letter to the anatomical structure.

H

external nares

G

eyelids

I

eye

J

tongue

E

teeth

F

external ear opening

Which structure is used for capturing prey?

E

F

G

H

I

J

What is the function of the structure labeled "F"?

Eyelids are to protect the eyes and keep them moist.

Mouth is for eating.

Nostrils are for breathing.

Skin is for camouflage.

What does the structure labeled "I" indicate about the lizard's diet?

Long tongue for catching insects.

Large mouth for swallowing.

Flat teeth for plants.

Sharp teeth help in eating insects and small animals.

What is the name of the structure labeled "C"?

cloaca

heart

liver

small intestine

What helps this structure labeled "C" absorb nutrients effectively?

Bacterial breakdown

Mucus production

Muscle contractions

Villi increase surface area

What is the name of the organ, labeled letter "D," that is responsible for gas exchange in a lizard?

Heart

Gills

Skin

Lungs

What gases are exchanged in the anole lizard lungs?  Check all that apply.

carbon dioxide

nitrogen

water vapor

oxygen

This anole lizard lost it's tail.  Here is what it looks like under the dissecting microscope at the site of where the tail disconnected.  Why do anole lizards detach their tails?

To swim better in water.

To lose weight easily.

To escape from predators quickly.

To grow larger faster.

What is the primary function of scales on anole lizards?

To help lizards swim faster.

To regulate body temperature.

For locomotion and movement.

To protect the skin from environmental damage.

The structure held in the forceps pumps blood throughout the body.  What system does it belong to?

Digestive system

Nervous system

Circulatory system

Respiratory system

What is the name of the brightly colored structure?  It's function is to attract mates and signal territory dominance.

lateral rectus

dewlap

quadrate bone

fatty tissue