In the nitrogen cycle, the bacteria that replenish the atmosphere with N2 are

Barbara is converting 78°f to degrees celsius. first, she subtracts 32 from 78. what is the next step?

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

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area