How many oceans are in the world?
5 (4 are basins)
Which plant structure in an algae's blade similar too?
Leaf
Give 2 examples of organisms found in phylum Mollusca?
snails, clams, squid, octopus
Do sharks fall in the bony or non-bony fish category?
Non-bony
What specification makes a bird considered a marine bird?
If it spends most of it's life near the sea and feeds on marine organism (or any answer close to this)
Name the Oceans.
Southern, Atlantic, Pacific, Indian and Arctic
Why are large multicellular algae NOT true plants?
They do not have true leaves, stems or roots.
Which ocean invertebrate that we discussed belongs to phylum Porifera?
Sponges
What special extra feature does a bony fish have that assists them in their buoyancy?
Air bladder
How do most seabirds waterproof their feathers?
Coating them with oil
Which ocean is the largest?
Pacific
What is the only plant group that is completely marine?
Seagrasses
What are the 2 basic body forms that jellyfish mature into?
Polyp and medusa
When discussing fish in the scientific world, when do you use "fish" vs "fishes"?
A single organism OR group of single species: use fish
When referring to a group of organisms that are from many species: use fishes
Which direction does a marine mammal swish their tail?
Up and down
Which ocean is not considered a basin?
Southern
What are the 2 reasons why cyanobacteria (less accurate term is blue-green algae) are so important?
They photosynthesize at great rates (lots of oxygen) and they take nitrogen from the air and make it into a molecule other living things can use.
What unique body design help echinoderms move?
Water vascular system
According to your book, what is the definition of gills?
Organs for taking oxygen from water
How do whales communicate?
Echolocation
Name 3 of the 5 layers of Ocean depths.
Sunlight, twilight, midnight, abyss, trench
What is the difference between phytoplankton and zooplankton?
Most phytoplankton are unicellular bacteria and cant swim. Zooplankton are small animal-like creatures that swim.
What is the name of the stinging structures found on many cnidaria?
Nematocysts (I will accept a close enough pronunciation of the word)
What class do most of the bony fish belong to?
Osteichthyes (ah'stee ik' thih eez)
(Will take anything close to this!)
What are the 2 types of whales?
Baleen and toothed (will accept description of behavior: type of food, size)