How do fish get oxygen into their body?
Their gills have capillaries full of blood that take in the oxygen from the water.
What is a species of salamander that never undergoes metamorphosis?
Axolotls!
How do frog tongues work?
2. the saliva changes from slimy to very sticky and then back to slimy to help it swallow
Why are tuataras endangered?
Rats were introduced to the islands and ate all the eggs (which take 11-16 months to hatch, and they only lay every 3-4 years).
They don't guard their eggs or keep them warm
Constrictors
Where is the caudal fin located?
Are salamanders related to frogs or lizards?
Frogs!
What does it mean that amphibians have permeable or semi-permeable skin?
The skin has openings that liquids or gasses can pass through.
What do both lizards and tuataras have on the top of their heads?
a parietal eye, or a "third eye"
How does the venom come out of the snake?
It is made in glands in their mouth and shot through a canal (tube) in their fangs.
How are fish scales similar to tree trunks?
The scales form rings as they grow, similar to turtles schuts and tree rings - you can tell their age.
what is the difference between worms and caecilians?
Caecilians have a backbone! They are vertebrates.
What are 2 differences between frogs and toads?
1. toads live out of water, have short back legs, and dry skin with bumps or "warts", fatter
2. frogs spend much more time in water, have smooth/slimy skin and long back legs to jump, skinnier
What is the only country where Tuataras ("spiky backs") are found?
New Zealand!
How do we know about so many snake's venom? What is the process called?
What is the name of the "meanest fish in the ocean"?
Whitemargin Stargazer (just "stargazer" is acceptable)
what are 2 traits of amphibians, fish and reptiles?
1. ectothermic
2. vertebrates
3. semipermeable skin
What are the 3 types of amphibians?
1. Frogs and Toads
2. Newts and Salamanders
3. Caecilians
Crocodiles -
1. all teeth are exposed when mouth is closed
2. larger
3. long, narrow, v-shaped snout
4. more aggressive
5. found all over the world except Europe and Antartica
6. Lighter in color
Alligators:
1. short, broad
2. U-shape snout
3. smaller
4. less aggressive
5. lower teeth hidden when mouth is closed
6. darker
7. only found in U.S. and China
What is the difference between how a snake molts and how a lizard molts?
Snakes usually shed their skin in one large piece, while lizards skin shreds off in many pieces.
What does anadromous mean? ("the fish is anadromous")
1. spawn in freshwater
2. swim to saltwater for most of their life
3. return to freshwater to lay eggs and die
What is the name of the largest salamander in the world and where is it found?
The Giant Salamander, found in China and Japan (can also say Asia)
Name the 4 stages of a frog's lifecycle.
1. Eggs (frog spawn)
2. Tadpoles
3. Metamorphosis
4. Adult
What bird has a symbiotic relationship with Nile Crocodiles?
the Plover!
Name 3 ways lizards use their tails.
1. Balance
2. Water propulsion
3. Grasping objects
4. Defense