Shared Flashcard Set

Details

Ch 30 Amphibians - Dr. Sharp
Ch 30-3 only
7
Biology
9th Grade
05/12/2009

Additional Biology Flashcards

 


 

Cards

Term
cloaca
Definition
a muscular cavity at the end of the large intestine through which digestive wastes, urine and eggs or sperm leave the body
Term
tympanic membrane
Definition
eardrum of amphibians inside the skull;  vibrates in response to sound, allowing hearing
Term
An amphibian is:
Definition
a vertebrate that, with some exceptions, lives in water as a larva and on land as an adult, breathes with lungs as adult, has moist skin that contains mucous glands, and lacks scales and claws
Term
How are amphibians adapted to land?
Definition

- Bones in limbs became stronger, permitting more efficient movement

- Lung adaptation enabled amphibians to breathe air

- Sternum, or breastbone, formed a bony shield to support and internal organs, especailly the lungs

Term

Describe amphibian respiration:

How does this relate to their ability to live on land?

Definition

- Gas exchange occurs thru the skin as well as the gills.

- Lungs replace gills when it becomes an adult

- In some, frogs and toads, lungs get well developed

- In others, such as salamanders, the lungs are not as well developed(exchange thru lining in mouth cavity as well as skin)

Term

Explain the circulatroy system of amphibians:

How is it deficient?

Definition
Term

Describe amphibian reproduction:

How does this cause problems for them to live on land?

Definition
Supporting users have an ad free experience!