Answer: Increased pressure gradient
Explanation:
The movement of gas takes place by the help of diffusion. The pressure is established in between the two different types of gases.
The movement of gas from higher concentration to lower concentration will take place when a pressure gradient is established in between them.
So, if there is an increased pressure gradient between oxygen and carbon dioxide then gaseous exchange will take place.
Answer:
Although prokaryotes divide through binary fission, eukaryotes undergo a more complex process of cell division because DNA is packed in several chromosomes located inside a Cell dividing by mitosis.
Explanation:
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Magnetic Field.
Magnetism is a force that can act at a distance. However magnets cannot exert a force on an object that is too far away.
Answer:
The 5' end has free phosphate group while the 3' end has free OH group.
Explanation:
Each DNA strand has two ends that differ from each other with respect to the functional group. The nucleotide present at the 5' end of a DNA strand has a free phosphate group. This phosphate group of other nucleotides of the DNA strand is bonded in phosphodiester bonds. Likewise, the 3' end of a DNA has a free OH group. This makes the two ends of a DNA strand quite different from each other. A DNA new nucleotide can be added to the 3' end due to the presence of a free OH group.