WorksheetsAICE MARINE MIDTERM REVIEW (Pt. 1 of 3)
Total questions: 10
Worksheet time: 5mins
What is the difference between an experimental group & a control group?
The independent variable is manipulated in the experimental group
The experimental group receives the placebo
The dependent variable is manipulated in the control group
The independent variable is manipulated in the control group
Which of the following could be a cause of why a discovery would be rejected by the scientific
community? (PICK 2)
the original method (procedure used to collect data) are unreliable
the finding contradicts popular belief
the results cannot be duplicated or reproduced by other researchers
A study of the stomach contents of ringed seals found that they included a variety of invertebrate prey: 73
crabs, 55 clams, 47 snails, 32 amphipods and 18 northern krill. Calculate to the nearest whole number, the mean of invertebrates in the seals’ stomachs.
41
45
52
56
A sampling method involving counting of species in frame quadrats placed adjacent to the transect Is?
Mark-release-capture
Line transect
Continuous sampling
Belt transect
Hypothesis
A method to estimate the population size of mobile species is?
Mark-release-capture
Line transect
Continuous sampling
Belt transect
Hypothesis
The mid-ocean ridges are recognized as:
Subduction zones
Transform or lateral plate boundaries
Divergent plate boundaries
Convergent plate boundaries
New crust is being generated:
In the deep trenches
In submarine canyons
In the rift valleys of the mid-ocean ridges
At the centers of large continents
Comprises the actual seafloor (beneath sediments/oceanic crust)
Granite
Basaltic
Comprises the bulk of the continents
Granite
Basaltic
A turbidity current is:
A fast moving current of water that runs parallel to beaches and that causes a rapid decrease in water clarity
The cause of mid-ocean maelstroms (whirlpools)
A phenomenon associated with violent atmospheric storms at sea
Something that always occurs at river mouths in shallow water, but does not extend into water more than 50 meters (165 feet) deep
most typically an underwater current of usually rapidly moving, sediment-laden water moving down a slope
