Sharks, tunas, and barracudas have what eating habit?
Carnivore
A shark usually has ______ teeth.
3000
Fish hearts have how many chambers?
Two
The three classes of fish are jawless fish, cartilaginous fish, and ______ fish.
Bony fish
The largest fish in the world is the _______
Whale shark
Fish have to have 3 things: gills, fins, and ______.
Scales
There are ____ species of amphibians
4000
Brightly colored amphibians mean ___________.
Poisonous
What fish part helps it sink deeper or come to the surface?
Swim bladder
Electric eels can create up to ____ volts.
650 volts
Salmon have what special sense?
They can find the odor of the stream they were born in
Frog hearts have ____ chambers.
Three
Rays and skates live on what level in the ocean?
The bottom
Ovoviviparous, Oviparous, Viviparous: the animal lays eggs.
Oviparous
Fish take care of their young by creating nests and ____________.
Hold eggs and young in their mouths.
If a fish lives in fresh water, the kidneys will do what with water in the body?
Pump it out
Amphibians have to live near water because: 1) skin can't dry out, 2) eggs don't have a shell, 3) _______.
Larvae need water to live in.
Adult amphibians have what eating habit?
Carnivores
Oviparous, Ovoviviparous, or Viviparous: Which one is where the young are in a yolk sac?
Ovoviviparous
Amphibian young breathe with ____, and amphibian adults breathe with ____.
Gills and Lungs
Fish can't hear but they can detect vibrations and the _______ of the water.
current
Amphibians protect themselves by: 1) hiding, 2) produce nasty chemicals, 3) ______________.
Camaflouge
What fish has 6 hearts and can tie itself up in knots.
Hagfish
Fish help the world by: 1) food supply, 2) clear waterways, and 3)_____________.
control pests
Amphibians help the world by: 1) eat insects, 2) poison for arrows, 3) research on poisons, 4) study for regeneration, and 5)________________
Humans can eat them