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Flashcards in chapter 3 Deck (30):
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what does amphibian mean

double life, because amphibians spend their early life stages in water and their adulthood on land.

1

characteristics of amphibians

moist thin skin with no scales
feet
use gills, lungs, and skin in respiration
external fertilization
oviparous
change from aquatic larval to terrestrial adult through metamorphosis

2

two important functions skin serves

respiration and protection

3

chambers in heart

3

4

double loop circulatory system

faster blood flow to the body

5

pulmonary circulation

type of circulation that involves the heart and lungs

6

systemic circulation

type of circulation that involves the heart and body

7

two ways amphibians can respire

through the lungs and through the skin

8

pulmonary respiration

respiration through the lungs

9

cutaneous respiration

respiration through the skin

10

digestive system type

simple stomach

11

primary excretory organs

kidneys

12

what part of brain is much larger in amphibians then fish

olfactory lobes (sense of smell)

13

nictitating membrane

transparent, moveable membrane that covers the eyes allowing for protection, and sight

14

tympanic membrane

eardrums of amphibians

15

amplexus

reproductive embrace of amphibians where the male latches on to females back until she releases her eggs

16

amphibians lay eggs, which meand they are?

oviparous

17

metamorphosis

process of change in an amphibians life cycle from tadpole to adult

18

what young are called in their aquatic stage of life

tadpoles

19

type of thermoregulation

ectothermic, they depend on their external environment to adjust their body temp

20

what order includes frogs and toads

anura

21

what order includes salamanders and newts

caudata

22

what order is only cecilians?

gymnophiona

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frog and toads characteristics

body adapted for jumping
long legs
short spine
strong limbs

24

characteristics of salamanders and newts

slender bodies
long tail
4 legs

25

characteristics of cecilians

legless
internal fertilization
small eyes

26

ecological indecators

tell us the nature of our enviornment

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why are amphibians good ecological indicators

only animal that have 3 different ways of respiration, breathe in pollution. so if their pop is low that means we are damaging the environment

28

afaptations for land

4 strong limbs

29

orders of amphibians

anura
caudata
gymnophiona