The Golgi apparatus is a membranous organelle that resembles a stack of flattened sacs with bulbous ends and associated vesicles.
<h3>What is the Golgi apparatus?</h3>
The Golgi apparatus is an organelle composed of many flattened membranes that serve to process and transport different macromolecules such as lipids in the endomembrane system.
In conclusion, the Golgi apparatus is a membranous organelle that resembles a stack of flattened sacs with bulbous ends and associated vesicles.
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The resistance of a given object depends primarily on two factors: What material it is made of, and its shape. For a given material, the resistance is inversely proportional to the cross-sectional area; for example, a thick copper wire has lower resistance than an otherwise-identical thin copper wire. Also, for a given material, the resistance is proportional to the length; for example, a long copper wire has higher resistance than an otherwise-identical short copper wire. The resistance R and conductance G of a conductor of uniform cross section, therefore, can be computed as
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where is the length of the conductor, measured in metres [m], A is the cross-sectional area of the conductor measured in square metres [m²], σ (sigma) is the electrical conductivity measured in siemens per meter (S·m−1), and ρ (rho) is the electrical resistivity (also called specific electrical resistance) of the material, measured in ohm-metres (Ω·m). The resistivity and conductivity are proportionality constants, and therefore depend only on the material the wire is made of, not the geometry of the wire. Resistivity and conductivity are reciprocals: . Resistivity is a measure of the material's ability to oppose electric current.
This formula is not exact, as it assumes the current density is totally uniform in the conductor, which is not always true in practical situations. However, this formula still provides a good approximation for long thin conductors such as wires.
Another situation for which this formula is not exact is with alternating current (AC), because the skin effect inhibits current flow near the center of the conductor. For this reason, the geometrical cross-section is different from the effective cross-section in which current actually flows, so resistance is higher than expected. Similarly, if two conductors near each other carry AC current, their resistances increase due to the proximity effect. At commercial power frequency, these effects are significant for large conductors carrying large currents, such as busbars in an electrical substation,[3] or large power cables carrying more than a few hundred amperes.
Answer:
Hydrogen combines with oxygen to make water. The products are energy, carbon dioxide, and water. Some of the energy released during cellular respiration is transferred to other molecules, which then carry the energy where it is needed for the activities of the cell. The rest of the energy is released as heat
True
Answer:
A. both parents had to give a recessive trait to their offspring
Explanation:
Both parents need to give a recessive trait because if there's any dominant ones, it'll overpower the recessive ones
