Answer:
The chemical and electrical signals are used by brain for communication,sensation and thought. Brain uses electrical signals from communication.
Cellular respiration results in decreased biomass for a plant. <span>In cellular respiration glucose and oxygen yield
water and carbon dioxide. So, carbon dioxide is released in the into the air instead of forming organic molecules which could increase the biomass.</span>
Distillation is a process that could be used to separate dissolved particles from the liquid in a solution.
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Gregor Mendel conducted hybridization experiments on around 29,000 pea plants. Peas were an ideal choice for Mendel to use because they had easily observable traits there were 7 of which he could manipulate.