The crystal violet molecules are trapped in the peptidoglycan layer of bacteria. For Gram-positive with a large peptidoglycan layer, the crystal violet molecules don't get washed off easily by the ethyl alcohol decolorizer (as it does in gram-negative bacteria) after staining. This makes it is possible to view the structure of the gram-positive bacteria after gram staining.
Answer:
A genetic problem caused by an issue in the organisms gene's is called <em><u>genetic </u></em><em><u>disorder</u></em><em><u>.</u></em>
<em><u>A genetic disorder is a disease that is caused by a change, or mutation, in an individual's DNA sequence. A genetic disorder is an illness caused by changes in a person's DNA</u></em><em><u>.</u></em>
<em><u>A genetic disorder happens when a gene (or genes) has a problem with its code, and this causes a health problem</u></em>
Answer: A characteristic of most mollusks is bilateral symetry.
Answer: d. bilateral symmetry.
<u>Answer:</u>
<em>Hydrogen and ozone are both examples of trace gases.
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<u>Explanation:</u>
Trace gases are present in minor quantities in the <em>earth’s atmosphere and all the gases except nitrogen, oxygen and argon </em>which make up the major portion of earth’s atmosphere are considered trace gases.
The respective percentages of nitrogen, oxygen and argon in the atmosphere are<em> 78.1%, 20.9% and 0.934%.</em> The process that produce trace gases is called source and the process that removes trace gas from the <em>atmosphere is called sink.
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<em>Some other examples of trace gases are carbon dioxide, neon, helium etc.
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