<h3><u>Answer and explanation;</u></h3>
- DNA is a double stranded molecule. Covalent and hydrogen bonds pray important roles in the functioning of DNA molecules.
- <em><u>Covalent bonds occur within each linear strand and strongly bond the nucleotide bases, sugars, and phosphate groups occurring both within each component and between components.</u></em>
- <em><u> Hydrogen bonds occur between the two strands and involve a base from one strand with a base from the second in complementary pairing.</u></em>
- Hydrogen bonds helps the complementary base pairs in DNA; guanine with cytosine and adenine with thymine to connect to one another. The hydrogen bonds between these complementary pairs helps keep the two strands of DNA helix together.
PPLO stands for Pleuropneumonia-Like Organism and it means: Mycoplasma.
Pleuropneumonia means pneumonia complicated with pleurisy.
Mycoplasma means any of a group of small typically parasitic bacteria that lack cell walls and sometimes cause diseases.
(I hope this helps in anyway possible. Sorry if it's not in 100 words, I couldn't get to that number. But maybe you can put more words into the sentences and make them longer. But I do really hope this has helped you!)
The Correct Answer is:
''<span>it increases the size of arteries and veins''
Rest of the options are consistent with the harmful effects of smoking on a person's health.
Smoking can increase the chances of a blood clot, increase blood cholesterol and contributes towards </span><span>atherosclerosis</span><span>
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If you have a distension of the stomach that can mean one 4 or more things. you ate something bad or old. you spun around in circles and feel like throwing up. you get a headache and you feel sick from your stomach. you got a stomachache
