Answer:
D ( distinct apical and basolateral ends of the cell)
Explanation:
Buffers in our blood are able to neutralize changes in the bloods pH.
The first stage is simply becoming aware of the importance of managing one's media "diet"--- that is, making choices and reducing the time spent with television, videos, electronic games, films and various print media forms.
<span>The second stage is learning specific skills of critical viewing--- learning to analyze and question what is in the frame, how it is constructed and what may have been left out. Skills of critical viewing are best learned through inquiry-based classes or interactive group activities, as well as from creating and producing one's own media messages.
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The third stage goes behind the frame to explore deeper issues. Who produces the media we experience and for what purpose? Who profits? Who loses? And who decides? This stage of social, political and economic analysis looks at how everyone in society makes meaning from our media experiences, and how the mass media drive our global consumer economy. This inquiry can sometimes set the stage for various media advocacy efforts to challenge or redress public policies or corporate practices.
As many as there are needed. you just can't have many independent variables
