Which human lifestyle factors led to overfishing and caused cod to nearly go extinct in the late 20th century? select the three correct responses.
a. people need to earn a living.
b. people enjoy eating fish.
c. people produce waste.
d. people conserve resources.
e. people need to eat food.

Explain the importance of producers, primary consumers, secondary consumers. and decomposers in an ecosystem

The small molecule cyclic amp (camp) takes about 0.2 second to diffuse 10 μm, on average, in a cell. suppose that camp is produced near the plasma membrane on one end of the cell; how long will it take for this camp to diffuse through the cytosol and reach the opposite end of a very large cell, on average? assume that the cell is 200 μm in diameter.

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil