The bark of a tree is impervious to gases and water because bark cells are dead cells of the epidermis and compactly arranged without intercellular spaces. They contain a chemical called suberin in their walls that make them impervious to gases and water and it doesn't allow gases or water into the tree as bark cells are in the bark outer most layer of the tree.
Answer:
b) from a region of high pressure to a region of low pressure
Explanation:
Blood flow is measured in blood volume per unit time. It is the movement of blood through an organ, tissue or vessel. It is initiated when ventricles in heart contract leading to its ejection at high pressure. Major arteries receive this blood and they further transport it at high pressure to smaller arteries, arterioles and capillaries. Hence arteries have thick walls to withstand this pressure. The pressure decreases when blood reaches to veins hence their walls are not that thick. Hence, blood flows from a region of high pressure to a region of low pressure.
If you sequence the dna of human as well as chimpanzees almost 99% of the sequence are similar showing they are phylogenetic related
Answer:
<u><em>1)</em></u> <u><em>Water has high heat capacity</em></u>
<u><em>2) Water is a versatile solvent</em></u>
<u><em>3) Water conducts more electricity than any other liquid</em></u>
<u><em>4) Water has high heat of vaporization</em></u>
<u><em>5) Water has very high surface tension</em></u>
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Explanation:
