The products of linear electron flow during the light reactions of photosynthesis are atp and nadph. <span>During these initial </span>reactions<span>, water is used and oxygen is released. The energy from sunlight is converted into a small amount of ATP and an energy carrier called NADPH.</span>
Cancers are classified according to the type of tissue in which the cancer arises, <span><span>according to the International Classification of Diseases for Oncology.</span>
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I think it is because it's easier to "control". Like the books usually said that the nucleus is the control center of the nucleus, so if the nucleus located at the center or near center of the cell. So like easy contact, easy control, easy communication etc.
I believe the first and last answers are the most environmentally conscious answers.
The right answer is The pressure in veins is lower than in arteries, causing less seepage of blood.
The arteries are the vessels located at the exit of the heart towards the organs. When the heart contracts like a pump to expel the blood to the arteries, the pressure is very strong. This is called systolic pressure. To cope with this pressure, the arteries have a thick and elastic wall, to be able to stretch without breaking. The arteries have an average diameter of 2.5 centimeters, against less than 2 mm for arterioles.
Unlike the arteries, the veins are subjected to a weak pressure, since the blood starts from the organs and not from the heart. The walls of the veins are therefore thin and fairly rigid because they have little resistance to provide against the pressure. The diameter of the veins and venules is rather small (smaller than arteries) and hardly varies. Veins and venules contain about 75% of the blood. During a cut, the blood of the veins gradually trickles.
So from these explanations, we can conclude that the propositions B; C and D are false, it is rather their opposite that is right.