Scientist are studying cellular respiration in a river ecosystem that has plants, animals, and decomposers. which group or groups of organisms in the river carry out cellular respiration?

What maintain homeostasis when a persons internal body temperature is 97.5°f

Select the correct answer from each drop-down menu. the lac operon in e. coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .

Which soil would most likely be found in the arctic? andisols gelisols histosols spodosols