The relationship between the dung beetles and the disease-carrying flies is a type of
A) mutualism.
B) commensalism.
C) intraspecific competition.
D) interspecific competition.
D
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If the seawater available to an estuary has a salinity of 30 percent and the seaward-flowing mixed water has a salinity of 20 percent at the estuary entrance, the net volume transport seaward is ________ units per day if the river input is 10 units per day.
A. 10 B. 5 C. 50 D. 20 E. 30
Demography is the study of population, particularly patterns of births, deaths, and marriages
a. True b. False Indicate whether the statement is true or false
How does isostasy relate erosion and deformation to changes in surface elevation?
What will be an ideal response?
The mobile lithospheric plates that comprise the surface of Earth are composed of part or all which compositional layers of Earth? (check ALL that apply)
a.Continental crust b.Oceanic crust c.Upper mantle d.Outer core e.Inner core