What makes a Fish a Fish?
Fish use these for swimming
Fins
A sharks skeleton is made of
Cartilage
Because of their calm and sweet nature and the enormous amounts of vegetation they eat, manatees are often called
Sea Cows
An octopus has these things under its arms used to capture prey
Suction Cups
Crustaceans have _____________ eyes with tiny parts, like mini eyes, that work together to help it see
Compound Eyes
Bony fish have __________ that cover their body.
Scales
When frightened, a hagfish can continuously
Vomit slime
A close relative to the manatee is the
Dugong
A defense mechanism of an octopus that darkens the waters so that a predator is unable to see
Ink
A bivalve has how many parts to its shell?
2 halves
Fish use these for breathing
Gills
A shark does not have scales. Sharks have dermal denticles, which are tiny ______________ like structures.
Teeth
Sea lions, seals, and walruses have a thick layer of this under their skin to keep them warm.
Blubber
An octopus has special cells called chromatophores that enable it to do this quickly
Camouflage
Phytoplankton use the ___________ to make their food?
Sun
Fish have a spine or backbone, which means they are
Vertebrates
Stingrays and sharks have a breathing hole called a
Spiracle
What is one of the biggest threats to manatees?
Boats
An octopus has this in the center of its body used to pry its food open and sometimes inject venomous saliva into its prey
Beak
When plankton multiply so quickly that the water becomes cloudy, it's called a
Plankton Bloom
Fish are unable to regulate their body temperature and rely on their external environment for warmth which means they are
Cold-blooded or Ectothermic
Sharks have specialized senses that are used to detect
Electricity
A manatee's tail is shaped like a
Beaver (rounded)
The octopus eye DOES NOT have this feature that the human eye has, making their photoreceptors receive all light that passes through.
Blind Spot
Since cephalopods are nektonic, we know that they can?
Swim