External Morphology + fun facts
The clear eye lid that protects the eyes of the frog while underwater
Nictitating Membrane
The process by which frogs breath using their lungs
Positive Pressure Breathing
The veins near the surface of the skin aid in the exchange of what two gases?
Oxygen and Carbon Dioxide
retract eyes into their head
frogs store their pee in _____
urinary bladder
The membrane located externally on either side of the head that acts as the eardrum
Tympanic Membrane
In order for frogs to breathe through [blank] the environment must be warm and moist
Skin
How many chambers does the heart have?
3
Frogs have 2 types of cone teeth, what are they called?
maxillary and vomerine
In what form do frogs excrete nitrogen from their bodies?
Urea
Survival mechanism used by frogs to avoid being seen
Camouflage
what are frogs 3 main respiratory surfaces?
skin, lungs, and buccal chamber
What are the names of the three aortic arches?
1) common carotid artery
2) pulmocutaneous artery
3) systemic artery
How long is a frogs small intestine ?
30 cm
If needed, a frog can ________ water from it's bladder to help regulate.
reabsorb
What do terrestrial frogs create to protect their vital organs over winter?
Anti-freeze
What structures help move urine to the bladder?
ureters
How many different frog species are there worldwide?
4,810