If a terrestrial ecosystem has a net primary production of 3000 j/m2 *yr and an ra of 2000, what is the gross primary production for this ecosystem? a. 100b. 500c. 1000d. 5000

Which class of organic compounds makes up the channels and pumps that move materials from one side of the cell membrane to the other? a.) carbohydrates b.) lipids c.) proteins d.) nucleic acids

In the name staphylococcus aureus, aureus is thea. kingdom.b. specific name.c. genus.d. domain name.e. family name.

Pl as time goes by and water goes through the water cycle again and again, the amount of water on earth: increases decreases ostays the same goes up and down