This group of fish look like eels and consist of predators and decomposers.
What is Cyclostomata.
Almost all amphibians go through this change.
What is metamorphosis?
Reptiles are this, which means egg layers.
What is oviparous?
Aquatic mammals have this to protect them from the cold marine water.
What is blubber?
Some cultures eat this creature, despite its slimy nature.
What is the hagfish?
This fish lives in a variety ecosystems, but causes havoc in each ecosystem, making it an invasive species.
What is the lamprey?
Instead of giving birth to live young, this group does this.
What is lays eggs?
Most reptiles do this so to prepare themselves for new skin growth.
What is shed skin?
This covers the dermis of this group.
What is hair/fur?
The largest of the group Chondrichthyes is this animal.
What is the whale shark?
This group of fish have bony skeletons.
What is Osteichthyes?
This characteristic is the inability to self-regulate body temperature.
Reptiles are ideally matched to warmer types of this.
What is weather?
Instead of laying eggs, this group does this.
What is gives birth to live young?
All aquatic vertebrates belong to this phylum.
What is chordata?
This type of ray uses the battery-like organs on either side of its head to help capture and kill its prey.
What is the electric ray?
What is environmental change?
Reptiles have this, which makes them part of the chordata phylum.
What is a backbone or vertebrae?
Some marine mammals that often swim in the ocean depths where light is scarce have developed this adaptation to help them "see."
What is sonar/echolocation?
This marine mammal is related to the elephant and is also an herbivore.
What is a manatee?
This type of fish has a cartilage skeleton and denticles instead of scales.
What are Chondrichthyes?
This species of amphibian does not go through metamorphosis, but instead keeps its gills through adulthood.
What is an axolotyl?
This largest reptile is North America is greatly feared because of its powerful jaws.
What is the American alligator?
These glands are necessary to provide nourishment for their young.
What are mammary glands?
When a shark swims at the water's surface, this fin can often be seen. Scary!
What is the dorsal fin?