PLZZ HELP?! How do marine biomes affect temperature on land?
a. Currents transport cold and cool the air above.
b. Currents transport heat and warm the air above.
c. Currents transport oxygen and cool the air above.
d. Currents transport oxygen and warm the air above.

15 ! come and answer! a(n) disease is caused by a pathogen and can spread among organisms. a infectious b noninfectious c toxic d contaminated

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes