The cell structure responsible for maintaining the environment of the cytoplasm is the A. cell wall.
B. cell membrane.
C. chloroplast.
D. mitochondria.
E. Golgi body.

Works together in the synthesis, modification, packaging, and transport of lipids and proteins

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d

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