Answer and Explanation:
In the DNA molecule, that is formed by two strands of nucleotides, makes sense that each nucleotide is strongly bond to one another while the strands have weaker bonds, for one particular reason.
The double-stranded nature of the DNA is a key element in its correct functioning. <u>When the DNA needs to be "unzipped" for certain processes such as replication and transcription, the weak hydrogen bonds that connect the two strands are broken</u>. If the bonds between the strands were stronger, much more energy would be needed to perform the processes mentioned before, and that wouldn't be beneficial for the cells.
Absorption takes place in the small intestine. Fatty acids and glycerol are formed by digestion of lipids which diffuse through the one-cell thick cell wall of villi and into lacteals (lymphatic vessels).
Answer:
the increase in size lead to to high ratio hence the large the surface area
Answer:
The correct answer would be option D, Cigarette Smoke.
Explanation:
Air Pollution is simply the pollution in the Air. Air pollution consists of gases or solid particles. Air pollution can be indoor and out door. Outdoor pollution is caused by the chemical emissions, factory gases emission, dust, car emissions, etc. The indoor air pollution would be considered the pollution that is caused by the indoor sources, such as fuel burning, smoke generation, etc. So the source of indoor air pollution which is considered the greatest is Cigarette Smoke, as large amount of people smoke inside the facilities, increasing the air pollution.
