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FLVS MARINE SCIENCE MODULE 1 EXAM
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FLVS MARINE SCIENCE MODULE 1 EXAM2024-2025
A scientist is investigating the effects of salinity on fish development in the
Atlantic Ocean. He places fertilized fish eggs in an aquarium that contains lower
salinity than typical Atlantic Ocean water. He observes that the fertilized eggs fail
to develop. He concludes that fish eggs do not develop in conditions with low
salinity. Why is this an invalid conclusion? - ANSWER The experiment does not
have a group tested in normal salinity.
Students in a high school Marine Science class are learning about the scientific
process. Four students were asked to write a testable prediction about cold weather
and oceans. Their responses are shown in the chart.
Student Response
Olivia Cold weather causes areas of the oceans to freeze.
Daniel Commercial fishing is bad in the ocean because fish die during cold
weather.
Raphael Oceans in Florida are more beautiful during cold weather.
Simone Investigations will eventually answer all questions we have about cold
weather and oceans.
Which student's prediction is the most testable using the scientific process? -
ANSWER Olivia
What distinguishes science from other disciplines that do not use scientific
methods? - ANSWER Science relies on observation, measurement, and
experimentation.
Ichthyology is an area of study that examines the physical and behavioral
, characteristics of fish by using experimentation. How would Ichthyology best be
characterized? - ANSWER Science
A biologist observes that ocean temperature decreases with increasing depth and
concludes that deep sea creatures are superior animals because they can survive in
harsher environmental conditions. Why is this an invalid scientific conclusion? -
ANSWER Scientific data cannot be used to make judgments of organism
superiority.
The body size of the individuals in a population of crabs starts decreasing. A
geneticist believes that interbreeding with a smaller species may have happened. A
marine biologist believes that the crabs may be undernourished. Why are both of
these options valid scientific hypotheses? - ANSWER Scientists with different
educational backgrounds may put forth different hypothesis to explain the same
data.
A submarine robot is operating near the ocean floor. What pressure and
temperature data will it most likely record? - ANSWER High pressures and cold
temperatures
A marine scientist wants to understand the effects of pressure on deep sea
organisms. Unfortunately, the harsh environment of the deep sea makes it difficult
to make long-term observations in areas of high pressure. What research method
would best allow him to overcome this limitation in studying these organisms? -
ANSWER Use robots that can travel to those depths and observe the organisms
Scientists have believed for many years that marine temperatures drop as ocean
depth increases. What experimental method would best test this hypothesis, and
why? - ANSWER Send a robot to measure the temperature of the ocean at various
depths and plot the data on a graph, because ocean temperature may change with
depth
Interpreting the results of an experiment requires critical thinking skills and the
ability to make connections across data. Which skill would most likely benefit a
scientist who is doing this? - ANSWER Creativity
Cyanobacteria are photosynthetic marine organisms. Why would these organisms
likely be found only in shallow ocean zones? - ANSWER The amount of light in
deeper ocean zones is too dim.
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