<span>It took over 200 years for the "cell theory" to be formalized and accepted. Hooke and Leeuwenhoek were early microscopist's.... but at the time the nature of matter, the belief in spontaneous generation, and the idea there were little worlds within little worlds ad infinitinum was popular. The discovery of the periodic table and establishment that atoms were real, the demolishing of spontaneous generation, all happened at the time that Schwann and Schleiden (and others) were working with better microscopes, better ideas about the material world, and better observations...... thus the cell theory.
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Answer:
➢ In a mercury thermometer, <u>a glass tube is filled with mercury</u> and a standard temperature scale is marked on the tube. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Mercury thermometers can be used to determine body, liquid, and vapor temperature.

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Answer:
The cork cambium is a natural insulator that protects woody plants from an hostile environment.
Explanation:
The cork Cambium is a tissue that belongs to the epidermis, it is responsible for the secundary growth in the plant and replaces the epidermis in roots and stems. The cork cambium also protects the plant from overhydration, it is waterproof and has really selective ways to let the water into the plant (apoplastic and symplastic pathway).
There is some special plants in the coast of the tropical area called mangrooves, these plants has really specialized cork cambium that controls not only the water levels but also the salt levels into the plant.
The cork cambium is really important because protects and regulates the plant and its environment.
The quotient is not an integer except the dividend is an integer multiple of the divisor which is for instance 26 cannot be divided by 11 to give an integer to one lateral from division by zero presence undefined, such a situation usage one of five methods that 26 cannot be divided by 11 in which division come to be a partial function.