Course

Ecology

Study Pack

Set 10 The Open Sea Distributions And Adaptations

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Question 1

(Multiple Choice)

Free
Which of the following explanations of diurnal vertical migrations cannot be excluded by available data?

A) Predation is stronger near the surface during daylight
B) The zooplankton are seeking a certain temperature, which varies between day and night
C) Strong light is harmful
D) Zooplankton are responding directly and only to diurnal changes in ambient light

Answer

Question 2

(Multiple Choice)

Free
Diurnal vertical migrations are a feature of

A) All phytoplankton and zooplankton
B) All zooplankton
C) Nearly all zooplankton capable of swimming
D) All zooplankton, with the exception of copepods

Answer

Question 3

(Multiple Choice)

Free
With regard to diurnal vertical migration, nearly transparent gelatinous forms

A) Pose problems for the energy hypothesis
B) Pose problems for the predation hypothesis
C) Can swim too slowly to account completely for their vertical ascent
D) All of the above

Answer