Explanation:
In the tundra and desert, the land is mostly barren and has only a few species of plants and animals for organisms to feed on. In the tropical rainforest, it has lots of rain and more plants can grow, and that results in more herbavores to feed on the plants and more predators to feed on the herbavores.
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The chloroplast is located throughout the cytoplasm of the cells of plant leaves and other parts depending on the type of plant.
Hydroelectricity comes from using the kinetic energy stored in the water. When the high pressure through the blades are released, its kinetic energy is transferred onto turbine blades to generate electricity.
Answer:
These changes probably would have taken place because of antigenic shift or to a smaller extent because of antigenic drift. The antigenic shift takes place when the segments of the influenza viral genome recombine in various ways, and this leads to major modifications to the proteins present on the surface.
The individuals generally do not possess immunological memory to this novel strain of the virus, thus, the disease that they encounter can be more extreme in comparison to the infection with strains to which they possess certain immunological memory. The antigenic shift can result in influenza pandemics.
The most common cause is the accuracy of the measurement instruments. And the observation of operator is also an important factor. That's why one measurement should do three times and use the average.
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