The science of marine biology Flashcards
What is Marine Biology
Study of organisms that live in the sea including water with some degree of salinity
What kind of fields are included in marine biology
Geology
Chemistry
Physics
Meteorology
Zoology, Botany
Marine Biologist vs oceanographer
Marine bio study organisms that inhabit the sea
Oceanographer study physical aspects of ocean
why study marine bio
Life likely came from the sea
Food, medical recourses and other recourses are produced from the ocean
Its cool and educational
Oceans regulate earth climate because water temp changes are less
James cook
sailed around world in 1768 and were first europeans to see antarctica ice fields and land on tahiti hawaii an other pacific islands. Did maps.
Charles Darwin
on HMS Beagle 1831-1836 observed collected and wrote descriptions of observations while mapping shoreline. Observations led to natural selection
Edward forbes
studied seafloor in British Isles Aegean sea in 1840 and 50
CHALLENGER
most major exploration to study marine organisms, published 50 volumes of information after discovering thousands of species
Marine biological institutions today
Woods hole, ma
Scripps, la
Friday harbor laboratories, wa
Remote Sensing
satellites to study large expenses of ocean surface
Sonar
used to map seafloor
Scuba
used to study marine environment in person for long periods and depths
Remotely operated vehicles
when scuba is not an option
Research Vessels
floating laboratories for observing marine environments for weeks, months or years without returning to land
Alvin
first deep sea submersible, used for exploring deep trenches catalog organisms never seen before
Steps of Scientific method
- Make observations
- formulate hypothesis
- perform experiments and make observations
- come to a conclusion
inductive reasoning
uses creative thinking to combine isolated facts into a cohesive whole
Hypothesis
possible explanation for a natural event
Experiment Variable
all conditions constant except this one that is deliberately changed
Model
representation of an actual object
Data
results of an experiment
true or false: Hypotheses can be true
FALSE. in science, no hypothesis are absolutely certain. evidence and data can support it, but don’t prove it true
True or false: the design of an experiment will often need to be amended
TRUE. Any number of factors may severely effect the results or the ability to conduct the experiment, and therefore will sometimes need to be changed or discarded.
True or false: Hypotheses must be stated in a way that allows for it to be possible to disprove them
TRUE: If you cannot test a hypothesis, it is not valid. for example, “mermaids are real”. There is no way to check the entire ocean to see if this is true, therefore this is not a good hypothesis
Where did the Phoenicians sail in 2000 bce?
the mediterrainean sea, red sea, eastern atlantic ocean, black sea, and indian ocean
Variables
factors that affect the observations
slay queen
you better ace this quiz bitch
