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marine science chapter 6 exam style questions and answers
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marine science chapter 6 exam style questions and answers
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marine science chapter 6 exam stylequestions and answers
define what is meant by the term intertidal zone - Answer -an area of a shoreline that is
submerged at high tide and exposed during low tide
compare the physical factors affecting organisms living on a rocky shore to those living
on a sandy shore - Answer -rocky shore: organisms have to deal with increased wave
action and weathering from the exposed shorline (organisms tend to be those capable
of attaching themselves to the rocks in some way)
sandy shore: organisms deal with large amounts of erosion occurring on the shore (they
adapt by burrowing, which is why the majority of organisms on this shore tend to be
infauna)
define the term vertical zonation - Answer -when organisms within an ecosystem
organize themselves into definite bands according to biological and physical factors
explain how the physical and biological factors of a rocky shore ecosystem contribute to
vertical zonation of the organisms that live there - Answer -- typical physical factors:
exposure to air and temperature tolerance determine an organism's upper limit in the
ecosystem
- typical biological factors: predation and competition determine the organism's lower
limit in the ecosystem
list three major lines of evidence supporting the theory on plate tectonics - Answer --
magnetic reversals in the rocks on the seabed
- fit of the continents (fossil evidence on multiple continents)
- seabed spreading
describe the movement at a TRANSFORM boundary and one feature located there -
Answer -- tectonic plates SLIDING past one another
- abyssal plains
describe the movement at a CONVERGENT boundary and one feature located there -
Answer -- tectonic plates moving TOWARDS each other
- ocean trenches
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