Krill Level
What keeps a fish from sinking?
For a fish to be buoyant, or float, it must displace an equal or greater amount of water than its own body mass. The trick is the swim bladder, which is basically like an air-inflated balloon that can expand and contract depending on how much gas is inside
What is the largest animal in the sea?
The Antarctic blue whale
What is coral made of?
hundreds to thousands of tiny coral creatures called polyps.
What are the names of world's oceans?
Atlantic, Pacific, Indian, and Arctic.
What is the difference between ocean and sea?
Seas are smaller than oceans and are usually located where the land and ocean meet. Typically, seas are partially enclosed by land. Seas are found on the margins of the ocean and are partially enclosed by land.
Name 5 animals that live on coral reefs?
Fish, corals, lobsters, clams, seahorses, sponges, and sea turtles
Name the parts of the wave?
The highest part of the wave is called the crest. The lowest part is called the trough.
How do fish breath?
Fish take water into their mouth, passing the gills just behind its head on each side.
What are 3 types of coral reefs?
The three main types of coral reefs are fringing, barrier, and atoll.
Why is the ocean salty?
Salt in the ocean comes from rocks on land.
What is the smallest animal in the sea?
Pygmy Seahorse
Name the parts (anatomy) of a polyp
Polyps are made of an outer cell layer called epidermis ("ep-ih-DERM-iss") and an inner cell layer called gastrodermis ("gas-tro-DERM-iss"), with a jelly-like substance called mesoglea ("mez-oh-GLEE-uh") in between.