Reptile And Amphibian Study Guide Flashcards
What does amphibian mean?
Double life
What is a spermatophore?
Sperm packet laid by male salamanders
What is paedomorphosis? Give example)
Adults retain their juvenile characteristics for life
Axolotl
How had paedomorphosis been important to the evolution of predominantly aquatic salamanders?
Retain external gills
Better aquatic respiration
Salamanders reproductive behaviors
Male lays spermatophore female takes packet into cloaca and lays fertilized egg
INTERNAL FERTILIZATION
Frog reproductive behavior
Amplexus
Male clasps female and squeezes
Male releases sperm as female lays eggs
EXTERNAL FERTILIZATION
List three adaptations amphibians have for living in water
Lay eggs in water
Larvae have gills
Respiration through skin
List three adaptations amphibians have for living on land
Replaced gills with lungs
Legs-tetrapods
Mucus glands- prevents evaporation
What is a tetrapod?
Four legs
What are chromatophores
Cells that contain color changing pigments
Are amphibians monoecious or dioecious
Dioecious
Order gymnophiona
Apods/ caecilians
Long/ slender body
No limbs
Tropical forest
Terminal anus
Blind
Burrow into the ground
Pancreas
Makes insulin DIGESTIVE GLAND
Cloaca
Sewer-EGGS,SPERM,URINE,Feces
Gall bladder
Stores bile
Spleen
stores blood and makes blood cells
Part of immune system
Fat bodies
Energy source
Kidney
Excrete excess water
Mesentery
Tissue
Holds together small intestine coils
Liver
Makes bile DETOXIFIER
How is the frog similar to other vertebrae’s?
Vertebrate
Ectotherm
Dioecious
How is the frog different from other vertebrates?
Metamorphosis
Respire through skin
How are amphibians and reptiles alike
Ectotherm
Dioecious
Lay eggs
3 chambered heart except crocodile
Which amphibian exhibits incredible regeneration capabilities
Axolotl
Explain two reptilian adaptations that allow terrestrial living
Lungs
Scaly skin
What is Jacob sons organ
Sense organ in mouth
What order reptile has Jacobson organ
Order squamata
Corn snake/ garter
Testudines
Sea turtle
No teeth
Shell
Crocodile
Teeth
Plastron
Ventral
Nuerotoxic venom
Paralyzes nervous system
Kinetic skull
Moveable
Crocodilian
Gators
Hemolytic venom
Breaks down tissues
Carapace
Dorsal
Alligator
U shaped snout
Shorter
Not as aggressive
Faster on land/water
Fewer teeth
Crocodile
V shaped snout
Longer
More aggressive
Slower on land/water
Toothy
Elapidae
Short, front fixed fangs
Example of elapidae
Cobra
Colubridae
Rear fangs
Example of venomous colubridae
Boomslang
Example of non venomous colubridae
Garter
Viperidae
Hallow, retractable fangs
Example of viperdae
Gaboon viper
Shell
Protection
Albumen
A reservoir of water and proteins
Defense against bacteria
Yolk
Source of food for the embryo
Yolk sac
Provides nutrition and gas exchange between mom and child
Chorion
Exchange of oxygen and carbon dioxide between embryo and egg external environment
Allantois
Serves as a respiratory organ and reservoir for excretion
Embryo
Developmental stage
Amnion
Protective cushion
Amniotic cavity
Protects the fetus from trauma