<span>Liquids have a medium shape and volume. The particles can move or slide past each other due to the small space available for movement. It cannot be compressed further due to the repulsive forces that act between them. The kinetic energy is medium too. These are the reason why liquids must be placed in a container or vessel to contain them. Beakers, Flasks, and graduated cylinders can contain the liquid. They are like glasses except they are shaped to achieve a specific measurement. Rulers cannot contain the liquid.</span>
B is shown in the diagram
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D. Viruses can avoid activating the adaptive immune system if they do not change their surface antigens once they have been recognized by T and B cells.
E. People who were affected with the smallpox virus before cowpox virus were naturally immune to the smallpox virus because the viruses shared some common antigens and the memory cells that recognized cowpox antigens responded to smallpox antigens as well.
F. Helper T cells can kill cells that are infected with viruses and Cytotoxic T cells are known to activate B cells.
Natural gas is transported through pipelines!
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Without the process of transpiration, plant might turn orange. It is because of wilting occur in plants. Transpiration is very important for plants growth and survival. Transpiration helps in the uptake of water from the soil. This water is used in the process of photosynthesis. Without this water, the plant wilts due to the removal of water from plant body and plant die. So transpiration is very important for plants.
