What does a hermit crab use to protect its soft, twisted abdomen from predators?
A shell
100
What is the name of the largest coral reef in the world?
The largest coral reef is the Great Barrier Reef, which spans 1,600 miles (2,600 km) off the east coast of Australia. It is so large that it can be seen from space!
100
I am a free-swimming marine organism with a jellylike, saucer-shaped body that is typically transparent. I also have stinging tentacles- what am I?
A jellyfish
100
How does the Spiny King Crab protect itself from predators?
It has sharp protrusions from its shell
100
I am an endangered species of shark that has flattened bladelike extensions on either side of my head, with the eyes and nostrils placed at or near the ends- what am I?
hammerhead shark
200
What is the name of the marine reptile that lays her eggs on the beach?
Sea turtle
200
I am a fish-eating organism that has hundreds of poisonous tentacles. I also protect clownfish from predators- what am I?
a sea anemone
200
What is the largest mammal on earth?
The blue whale
200
______________ is when organisms blend in with their environment in order to hide from predators. For example, many deep sea organisms have transparent bodies, so their predators will have a difficult time spotting them in the water.
Camouflage
200
I am an endangered species of baleen whale that has a hump (instead of a dorsal fin) and long white flippers. I am also known for my lengthy vocalizations or "songs"- what am I?
humpback whale
300
I am a globular animal that has a spherical shell covered in mobile spines- what am I?
Sea Urchin
300
In what type of water conditions do coral reefs grow best? (Hint: think about where we find coral reefs- Hawaii, Australia)
Warm, shallow, clear water
300
What organism uses echolocation to determine the location of other organisms underwater? This organism uses echolocation by interpreting the echoes of sound waves that bounce off of objects near them in the water.
A dolphin
300
The biochemical emission of light by living organisms such as fireflies and deep-sea fishes is know as __________.
What are formed as a result from the gravitational forces between the Earth, the sun, and the moon?
The tides
400
Thousands of ___________ live together to form a coral colony. This organism is a very small, simple organism consisting of a stomach topped by a tentacle-bearing mouth. At night this organism extends its tentacles to sting and ingest tiny organisms such as plankton.
Polyps
400
What is the name of the thick layer of fate that is located directly under the skin of all marine mammals and keeps them warm in icy waters?
Blubber or adipose tissue
400
What is the name of an opening in the sea floor out of which heated mineral-rich water flows?
Hydrothermal vent
400
Name two reasons why animals become endangered
Possible answers: Destruction of habitat, pollution, and over hunting/fishing
500
What organism is the main component of the diet of barnacles and mussels? (Hint: this is a character in SpongeBob)
plankton
500
Name one great global threat to coral reefs (there are 2)
1) Rising water temperatures- cause corals to lose the microscopic algae that produce the food corals need to survive (a process known as coral bleaching)
2)Ocean acidification (linked to rising carbon dioxide levels)- acidic seawater makes it difficult for corals to build their calcium carbonate skeletons
500
What is the name of the primary plant that lives in the pelagic zone?
Phytoplankton- a micro algae that obtains its food through photosynthesis
500
Many organisms produce their own food through photosynthesis. In the deep sea, organisms living near hydrothermal vents use the chemicals in the area to make their own food through what process? (Hint: photo=light, synthesis= to put together; therefore, if we are using chemicals to synthesize food, what would this process be called?)
chemosynthesis
500
How do oil spills impact marine life?
Oil destroys the insulating ability of fur-bearing mammals, such as sea otters, and the water repellency of a bird's feathers, thus exposing these creatures to the harsh elements. Without the ability to repel water and insulate from the cold water, birds and mammals often die from hypothermia.