Environmental Science
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Enviromental Science
What effect could an uncontrollable grass carp population have on the energy pyramid of an lake environment?
asked by Michaela on October 11, 2012 
math
what is the answer to this problem : there are 1.5 times more carp in the lake this year than last year. this year's carp population is 423. write an equation to determine how many trout are in the lake this year.
asked by Karly on February 13, 2013 
Sociology
Can someone please help me read population pyramids for Zambia? I have to compare 3 different years and explain what's going on to the population but i don't understand how to read the population pyramid. Im having trouble
asked by Amy on September 28, 2009 
algebra
The number of bass in a lake is given by P(t) = 2800/1+6e^0.05t where t is the number of months that have passed since the lake was stocked with bass. (a) How many bass were in the lake immediately after it was stocked? ? bass
asked by Barb on November 17, 2014 
physics
Jimmy has caught two fish in Yellow Creek. He has tied the line holding the 3.40 kg steelhead trout to the tail of the 2.29 kg carp. To show the fish to a friend, he lifts upward on the carp with a force of 75.3 N. What is the
asked by Anonymous on September 26, 2009 
Physics
Jimmy has caught two fish in Yellow Creek. He has tied the line holding the 4.30 kg steelhead trout to the tail of the 1.39 kg carp. To show the fish to a friend, he lifts upward on the carp with a force of 87.7 N. What is the
asked by Lucy on October 25, 2008 
Physics  AHH!!!
Jimmy has caught two fish in Yellow Creek. He has tied the line holding the 4.30 kg steelhead trout to the tail of the 1.39 kg carp. To show the fish to a friend, he lifts upward on the carp with a force of 87.7 N. What is the
asked by Anonymous on October 26, 2008 
physics
Lake Champlain, bordered by New York, Vermont, and Quebec, has a surface area of 1,126 km^2. If the energy (173 PJ) is provided by sunlight shining on the lake at an average rate of 200 W/m^2 but with only half that amount
asked by Joseph on February 9, 2017 
calculus
If the fish population, p, in a lake can be modelled by the function p(t)=15(t^2+30)(t+8), where t is the time, in years , from now. How do I determine the rate of change when the population when there are 5000 fish in the lake?
asked by Nick on March 5, 2011 
biology
if an ox extracts only 50% of potential energy in grass and out of this if the ox used 40% to build up its body ,then the overall efficiency of grass to become part of ox would be: A)10% C)20% B)15% D)30%
asked by rebika on August 22, 2017