Genetic engineering can crops.
a. harm
b. reduce
c. improve
d. none of the above

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.