<span><span>Hi,
The two major components of the tobacco mosaic virus were:
1. Protein Coat/Capsid: Each rod consists of about 2130 elliptical protein subunits (capsomers). They are closely packed together and arranged in a helical fashion
</span><span>2. Nucleic Acid: It is a single-stranded RNA helix having a diameter of 80 Å.
Hope I helped :))))</span></span>
<span>B. A prokaryotic cell does not have nucleus and the other one does. The most defining characteristic of eukaryotic cells is their true nucleus. Prokaryotes lack true nucleus</span> and membrane bound organelles.
This would be called--Visual.
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Acid reflux is a stomach acid that travels back up through the esophagus when the lower esophageal sphincter does not close properly following consumption of food. You get heart burns with acid reflux that’s why you should take Antacids. Antacid excess stomach acid to relieve heartburn, sour stomach, acid indigestion, and stomach upset. They can also be used to relieve the pain of stomach and duodenal ulcers. Alka-seltzer can also work because
When too much acid builds up in your stomach, it can feel upset. Alka-Seltzer is a "buffer" which keeps your stomach from being too acidic. This demonstration using bromphenol blue and vinegar, will show how Alka-Seltzer neutralizes stomach acid.