Section 3

Question 1

What is an amphibian ?

Answer 1

A vertebrate that is econometric and spends its early life in water

Question 2

What are some types of amphibians?

Answer 2

Frogs, toads and salamanders

Question 3

After beginning their lives in water where do most amphibians spend their adulthood?

Answer 3

On land

Question 4

What are the two major groups of amphibians?

Answer 4

Salamanders
Toads&frogs

Question 5

What is the larvae of a frog or toad called?

Answer 5

Tadpole

Question 6

What are the major stages in life cycle of a frog?

Answer 6

1- adult frogs reproduce sexually
/) eggs are fertilized outside the females body
3 swimming tadpoles hatch from eggs
4 hind legs develop
5- front legs develop
6 the tail is absorbed and development is completed

Question 7

Once an adult amphibian lives on land what does it use to breathe?

Answer 7

Lungs ( during metamorphosis, an amphibian loses its gills and develops lungs)

Question 8

What are lungs?

Answer 8

Organs of air breathing vertebrates in which oxygen gas and carbon dioxide gas are exchanged between the air and the blood

Question 9

True or false? Many adult amphibians have a circulatory system of two loops and a heart with three chambers

Answer 9

TRUE

Question 10

What are the two upper chambers of the heart called?

Answer 10

Atria

Question 11

Are adult amphibians herbivores or carnivores?

Answer 11

Carnivores : they feed on small animals

Question 12

What are the adaptations that amphibians have for living on land?

Answer 12

The develop lunngs
They have camouflage
They have strong skeletons and muscular limbs adapted for living on land

Question 13

Do most amphibians undergo metamorphosis?

Answer 13

Yes TRUE think tadpole to frog

Question 14

What does a fertilized egg in frog metamorphosis hatch into?

Answer 14

A tadpole

Question 15

What legs develop first in frog metamorphosis ?

Answer 15

Hind legs

Question 16

When metamorphosis is done what is the result

Answer 16

The tadpole had developed into a Ford. He has developed strong muscular legs( hind legs first then front) and lost the tail

Question 17

Do adult amphibians have gills or lungs?

Answer 17

Lungs

Question 18

True or false: amphibians have a one chambered heart

Answer 18

False they have a 2 chambered heart

Question 19

How is a frogs coloring helpful

Answer 19

Camoflauge( it helps them survive becuase they blend in with the environment so they can hide and obtain food)

Question 20

How have frogs and toads adapted for hopping and leaping?

Answer 20

They have powerful hind legs muscles and a skeleton that can absorb the shock of landing

Question 21

What is the specific environment in which an animal lives?

Answer 21

Its habitat

Question 22

What is causing the populations of amphibians to decrease?

Answer 22

The destruction of amphibian habitats

Question 23

Why are amphibians especially sensitive to changes in their environment?

Answer 23

Skin is delicate
Their eggs lack shells

Question 24

How does blood move in the circulatory system of an amphibian ?

Answer 24

They have a single loop and a heart with two chambers while the adult has no loops and a heart with three chambers

Question 25

How do frogs obtain food?

Answer 25

They wait for their prey to come close

Question 26

How do salamanders obtain food?

Answer 26

They actively stalk and ambush their prey

Question 27

What are two adaptations that amphibians have for moving on land?

Answer 27

• strong skeletons
• muscular limbs

Question 28

What is a tadpole?

Answer 28

Larvae of a frog

Question 29

What are the names of the two types of chambers in an amphibians heart?

Answer 29

Atria and ventricle

Question 30

Do adult amphibians have a 2 chambered heart?

Answer 30

NO , they have a 3 chambered heart

Question 31

Do adult amphibians have lungs?

Answer 31

Yes

Question 32

Does a tadpole have a two loop system with a 3 chambered heart?

Answer 32

NO- a tadpole has a one loop circulatory system with a two chambered heart, an adult frog has a two loop system with a 3 chambered heart