Marine biology
What fish has a wide and flattened head that can spot prey hidden beneath the sand and detect electrical signals from others animal?
Hammerhead shark
What chemical reaction possessed by many marine bacteria allows them to produce light?
Bioluminescence
What marine career protects marine wildlife?
Marine Conservationist
What is the term for all the liquid and surface water of the planet
hydrosphere
What apex predator keeps kelp forests stable?
Otters
What reptile has a powerful jaw with thick armored skin that inhabits tropical coastal regions, estuaries, and river systems?
saltwater crocodile
Marine microbes make up what percentage of the entire marine biological community?
90%
Why is the ocean important?
It produces 50 percent of the oxygen we breathe
It is vital for climate biodiversity and human life
What sonar navigation technique do whales and dolphins use to hunt?
Echolocation
What organisms serve as the basis of marine food webs?
algae
what percent of the ocean's surface is covered by water?
71 percent
What is the process where dissolved organic matter is converted into microbial cells?
The microbial loop
What does an oceanographer do?
studies ocean currents, marine chemistry, and climate change effects?
Explain stratification
When warm and cool waters separate, therefore reducing mixing and nutrient supply
What ocean zone has no sunlight?
Aphotic zone
What are convergent plate boundaries?
Who was the first scientist to discover microbes living at extreme ocean depths?
Claude Ephraim Zobell
What do underwater archaeologists do?
Explore ocean history
What is the process where phytoplankton absorb CO2 via photosynthesis, moving carbon into the food chain?
The carbon cycle
What is another name for quaternary consumers of the food web?
Apex predators
What is the largest oceanic trench in the world?
Mariana Trench
What is the largest bacteria in the world?
Thiomargarita magnifica
What marine career develops autonomous underwater vehicles
marine robotics engineer
How do corals build their exoskeletons?
biomineralization
How many major ocean zones are there?
5