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expeople1 [14]
3 years ago
7

Which of the following is a difference between RNA and DNA?

Biology
2 answers:
lbvjy [14]3 years ago
8 0
D) RNA also is single-stranded, while DNA is double-stranded. Think D for double. Both types use adenine, cytosine, and guanine for its base pairs.
valina [46]3 years ago
3 0

Answer:

option D is right answer

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1. The branches of the bronchial tree ultimately ends at the alveoli.
Bronchial tree consist of bronchi, bronchioles, and alveoli. Bronchi are formed as the lower part of the trachea divides into two tubes. Bronchioles are smaller tube divisions of the bronchi. It walls contain smooth muscle and no cartilage. Alveoli are tiny ends of the alveolar ducts, which functions as the site for gaseous exchange. 

2. Blood flows from the left atrium; mitral (bicuspid valves), the left ventricle, aortic valve, aorta, veins and heart, right side of the heart, superior and inferior vena cavae, right atrium, tricuspid valve, right ventricle, pulmonary valve, pulmonary trunk, pulmonary artery, lungs, pulmonary veins, then back to the heart...

3. Arteries and the veins differ in structures and they way they functions; Arteries carry oxygenated blood away from the heart to the body (except pulmonary artery) while veins carry deoxygenated blood back from the body to the heart (except pulmonary veins). A structural differences includes; the veins contain valves while arteries lack. Arteries have narrow lumen while veins have wide lumen. Lastly, blood carried by veins has higher pressure compared to blood carried in vessels.

4. The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and the bronchioles. Blood moves in and out of the lungs throgh the pulmonary arteries and veins that connect to the heart.

5. The cartilage rings of the trachea
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6. Functions of the larynx includes;
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to regulate the flow of air into our lungs
The production of sounds used for speech 
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7. Structures that make up the pathway of air through the respiratory system starting with the external nares; We start with; External nares, nasal cavity, internal nares, nasopharynx, laryngopharynx,oropharynx, larynx, trachea, primary bronchus, secondary bronchus, tertiary bronchus, bronchiole, terminal bronchiole, respiratory bronchiole, alveolar duct, alveolar sac and alveolus. 
6 0
3 years ago
Which type of active transport moves materials out of a cell? which type of active transport moves materials into a cell? which
Shalnov [3]
Exocytosis moves materials out of a cell.
Endocytosis moves materials into a cell.
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Molecules move from an area of high concentration to an area of low concentration by passive transport. 
5 0
3 years ago
Georgia is the world's leading producer of this type of clay used in the manufacturing of
kap26 [50]

Answer:

Georgia is the world's leading producer of Kaolin (china clay).

Explanation:

Kaolin or china clay contains the mineral kaolinite mainly. It also contains varying amounts of other minerals like muscovite, feldspar, quartz, etc. In order to prepare it for commercial use, the clay in its natural form is then chemically treated and washed with water to remove the other minerals.

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6 0
3 years ago
List 4 factors that affect the amount of destruction caused by seismic vibrations
ziro4ka [17]
1. Intensity.
2. Duration of shaking.
3. Nature of material upon which structure rests.
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3 years ago
Meiosis is a type of cellular division that makes sex cells or___?
ch4aika [34]
Gametes

gametes is another word for sex cells
3 0
3 years ago
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