Answer: no they don’t they only have one
Explanation:
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.
The question is incorrect. The correct question is as follows:
The prosthetic group of hemoglobin and myoglobin is _______?
The organic ring component of heme is _______?
Under normal conditions, the central atom of heme is ________?
In ________ the central iron atom is displaced 0.4 A out of the plane of the porphyrin ring system.
The central iron atom has _______ bonds: ________ to nitrogen atoms in the porphyrin, one to a _______ residue and one to oxygen.
Answer:
The hemoglobin is an important protein that transport oxygen in the body and contains the pigment that gives the red color to the red blood cells. The myoglobin protein is responsible for transport of oxygen in muscles.
The heme molecule acts as prosthetic group for both myoglobin and hemoglobin. The porphyrin ring is present in heme molecule. The iron molecule especially Fe2+ is present in heme molecule. The deoxyhemoglbin states occur when the central atom is displaced 0.4 Å. The iron central atom can form six bonds and forms four bonds with the prophyrin of nitrogen and one bond with histidine molecule. Histidine acts as a buffer fir the blood.
Answer:
xerophytes
Explanation:
Cacti plants are know to make habitat hot dry climates therefore being one of the few plants being able to live in these harsh conditions
