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Fishes, Amphibians & Reptiles

6 An ectotherm’s body temperature is controlled by the environment in which it lives. How much internal heat does an ectotherm produce?

a. none

b. a small amount

c. a large amount

7 Circle the amphibian. Cross out the reptile.

1 A fish is an __________ with fins that lives in the water.

Circle the answer letter.

a. endothermic vertebrate

b. ectothermic vertebrate

c. ectothermic invertebrate

3 What substance is released by the gills of a fish?

a. oxygen

b. nitrogen

c. carbon dioxide

d. carbon monoxide

2 An __________ grows as an organism grows, supports the pull of gravity, and allows the organism to move easily.

a. endoskeleton

b. exoskeleton

c. simple skeleton

10 How does a reptilian egg survive on land?

a. The shell is too hard to break.

b. Water is taken into the shell.

c. Water is conserved inside the shell.

9 What adaptations make it possible for reptiles to live their entire lives on land without drying out?

a. webbed feet and scales

b. heart and lungs

c. tough skin and kidneys

8 Which is an adaptation of an amphibian for moving on land?

a. big brain

b. strong endoskeleton

c. closed-circulatory system

5 _________ lay eggs in the water where they hatch into larvae with gills. Most _________ lay their eggs in a dry environment.

a. Amphibians, reptiles

b. Reptiles, amphibians

c. Amphibians, fish

4 Bony fishes are covered in something called __________.

Circle the answer.

LifeSci

Name ____________________________ Class __________________ Date ____________

scales hair

feathers leather

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© Copyright MMXVI NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to make copies for non-commercial educational purposes only. Visit us at www.newpathworksheets.com

Fishes, Amphibians & Reptiles - Answer Key

6 An ectotherm’s body temperature is controlled by the environment in which it lives. How much internal heat does an ectotherm produce?

a. none

b. a small amount

c. a large amount

7 Circle the amphibian. Cross out the reptile.

1 A fish is an __________ with fins that lives in the water.

Circle the answer letter.

a. endothermic vertebrate

b. ectothermic vertebrate

c. ectothermic invertebrate

3 What substance is released by the gills of a fish?

a. oxygen

b. nitrogen

c. carbon dioxide

d. carbon monoxide

2 An __________ grows as an organism grows, supports the pull of gravity, and allows the organism to move easily.

a. endoskeleton

b. exoskeleton

c. simple skeleton

10 How does a reptilian egg survive on land?

a. The shell is too hard to break.

b. Water is taken into the shell.

c. Water is conserved inside the shell.

9 What adaptations make it possible for reptiles to live their entire lives on land without drying out?

a. webbed feet and scales

b. heart and lungs

c. tough skin and kidneys

8 Which is an adaptation of an amphibian for moving on land?

a. big brain

b. strong endoskeleton

c. closed-circulatory system

5 _________ lay eggs in the water where they hatch into larvae with gills. Most _________ lay their eggs in a dry environment.

a. Amphibians, reptiles

b. Reptiles, amphibians

c. Amphibians, fish

4 Bony fishes are covered in something called __________.

Circle the answer.

LifeSci

Name ____________________________ Class __________________ Date ____________

scales hair

feathers leather

Please or to download

the printable version of this worksheet

Sign In Sign Up