Answer:
20%
Explanation:
cytosine = guanine = 30%
cytosine + guanine = 60 %
adenine + thymine =100% - 60% = 40 %
thymine = 20%
I think the answer would be protons
Answer
Water molecules sticking to a mirror’s surface is an example of adhesion.
Explanation
Adhesion is the property of attractive force that exist between two different molecules. water molecules adhere to other surfaces due to their polar nature.
Importance
it is because of adhesive forces that water can travel and cover a distance of 100 meter up in the plants through xylem vessels as recorded in the world tallest tree (red wood tree)
The carbon's atomic structure can form so many different molecules because has 4 valence electrons to form bonds with other atoms and thus generate organic compounds.
<h3>What about carbon's atom makes it unique to produce organic bonds?</h3>
The carbon atom exhibits 4 valence electrons that allow it to form bonds with other carbon atoms and also with other elements
This singular property of carbon atoms is used in biological systems to generate many different types of organic compounds.
In conclusion, the carbon's atomic structure can form so many different molecules because has 4 valence electrons to form bonds with other atoms and thus generate organic compounds.
Learn more about carbon atoms and life here:
brainly.com/question/10168847
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Answer
The correct option is B.
Reason
A brief technical explanation for each option is given below.
a. Asthma
It is lower respiratory disorder in which air passage way become narrow and swells, produce extra mucus which make difficulty in breathing, and trigger sneezing, wheezing and shortness of breath.
b. Pleurisy
It is lung disease in while pleura, lining of lung and chest cavity become inflamed due to accumulation of pleural fluid. The fluid is accumulated through the process of pleural effusion which may be transudate or exudate.
c. Pulmonary hypertension
It is a condition in which blood pressure increase in lung arteries. It leads to shortness of breath, swelling of legs and fast heartbeat.
d. COPD
Stand for chronic obstructive pulmonary disorder. It is a progressive lung disorder accompanied with chronic bronchitis, emphysema and non-reversible asthma.
e. Emphysema
In this type of lung disorder the alveoli block due to accumulation of fluid in it, that result into low exchange of gases (oxygen and carbon dioxide).
