UCLAEEB 109 Exam 2-KEY-1

UCLAEEB 109 Exam 2-KEY-1 - Name Discussion Section(1pt EEB...

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Name: Discussion Section #: (1pt) EEB 109 Exam 2 Instructions: Read questions carefully. Write your answers in the space provided using permanent ink. Write your Name and DISCUSSION SECTION # (not TA name) on each page of your exam. 1.To the right is a graphic of the Thames Estuary in London. a. List the similarities and differences in the abiotic stressors in the intertidal environment at site 1 and 2 during low tide (8 pts). Similarities Differences Dessication stress Low salinity at 1 and high salinity at 2 Elevated temperature stress Osmotic stress b. Site 3 is coastal rocky intertidal. List 2 unique factors that influence the formation of zonation at location 3. (6 pts) Wave stress, competition for space. 1
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Discussion Section #: (1pt) c. Of these 3 locations, which one an accretionary environment and why? (5 pt) site 1. Site 1 is an accretionary environment because marsh grass promotes sedimentation at the head of the estuary. 2. Despite sharing the same latitudinal range, Southern California has kelp forests and North Carolina does not. Assuming that nutrient availability is similar in both locations, briefly explain the 2 most likely reasons why this might occur (6 pt) Kelp need cool temps and rocky substrate. Temperatures are too warm and no rocky substrate in N. Carolina.
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UCLAEEB 109 Exam 2-KEY-1 - Name Discussion Section(1pt EEB...

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