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 Autotrophic plankton are generally called ____.

Determine if the given differential equation is exact. =

Store the microscope with the ____ objective in place.

Find all the first order partial derivatives for the following function.f(x, y) = ln

 Toothed whales (Odontoceti) can search for prey using ____.

Find an integrating factor to make the differential equation exact.(3xy + y2) + (x2 + xy)y’ = 0

 Regions in which human activity is restricted to protect the natural environment are designated as _____. 

 In the gill of a fish, water and blood circulate ____, which ____ transfer efficiency.

 A 2014 NASA’s Goddard Space Flight Center study reminds us that ____. 

  Many populations that interact with one another at a particular location form a ____.