Marine Bio week 1 – 3 questions with correct answers
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Course
Marine
Institution
Marine
Marine Biology Correct Answer-is the study of organisms that live in the sea, including all water that has some degree of salinity, like the estuaries at river mouths
Marine Bio versus Oceanography Correct Answer-Marine biologists study the organisms that inhabit the sea. Oceanographers study th...
Marine Bio week 1 – 3 questions with correct answers
Marine Biology Correct Answer-is the study of organisms that live in
the sea, including all water that has some degree of salinity, like the
estuaries at river mouths
Marine Bio versus Oceanography Correct Answer-Marine biologists
study the organisms that inhabit the sea. Oceanographers study the
physical (non-living) aspects of the ocean including tides, currents,
waves, and chemical makeup of sea water.
The ocean covers Correct Answer-71% of the planets surface
By volume the ocean makes up what percent of earths inhabitable space
Correct Answer-97%
Biomass of marine life Correct Answer-exceeds that of land
Average depth of ocean Correct Answer-12,000ft (3700 meters) The
deepest ocean is the Pacific!
5 ways you are connected to the ocean Correct Answer-1. Since life
began in the sea, studying marine life can provide clues about early life
on earth.
2. The air you breathe
3. The food on your plate
4. The items in your medicine cabinet
,5. Jobs and the economy
Horseshoe crabs (445 million year old 'living fossils') Correct Answer-
•Blue color is a consequence of copper-based hemocyanin to transport
oxygen
•Use amebocytes to fight infection, which are of enormous medical
value
•Horseshoe crab amebocytes coagulate around as little as one part in a
trillion of bacterial contamination. The reaction takes 45 minutes (rather
than 2 days)
•Used for testing medical equipment and vaccines prior to use
•Been unable to synthesize
Why study marine biology? Correct Answer-Prepares you for a career in
biology and basic research such as resource management, environmental
consulting, fisheries, government agencies, etc.
Marine Biology began with Correct Answer-simple observations.
Aristotle (greek philosopher) described many marine forms (350BC).
Captain James Cook and his crew sailed around the world in 1768 and
were the first Europeans to see Antarctic ice. Landed on Hawaii and
Tahiti. Massive mapping, brought back a lot of specimens.
19th century Correct Answer-Marine biology developed into a science
involving ecology and hypothesis testing.
, Charles Darwin Correct Answer-Sailed on the HMS Beagle in 1831-
1836 as a naturalist. He was supposed to be mapping out coastlines but
instead he collected and wrote descriptions of organisms he saw.
Formulated the principle of evolution by means of natural selection. He
was a marine biologist, studied barnacles, which lead him to variation,
natural selection and speciation.
Challenger Expedition (1872) Correct Answer-First major exploration
devoted to study of marine organisms. Crew discovered thousands of
species and 50 volumes of information from the data collected over the
next 19 years.
Modern Marine Biology Correct Answer-Famous ones in USA: Woods
hole oceanographic institution and marine biological lab in
Massachusetts. Scripps institution in Cali. Friday Harbor lab in
washington and the one at FSU.
Important tools in modern marine bio Correct Answer-Remote sensing
(Satellites are used to study large expanses of the ocean surface), Sonar
(used to map seafloor depths and formations), Scuba (used to study
marine environment), Remotely operated vehicles (Allows for direct
exploration when scuba isn't an option), research vessels (Floating
laboratories that can be used for months and even years at sea).
Scientific Method Correct Answer-A systematic way of reasoning and
testing ideas/observations.
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