<span>Ionic bonds formed between a metal and a non-metal, while in covalent bonds both participants are non-metal. In ionic bonds non-metals(more strong, negatively charged) get electrons from metal, while in covalent bonds electrons are shared. Ionic bonds have high melting and boiling point and no definite shape, its opposite in covalent bonds.</span>
An experiment is a procedure designed to test a hypothesis as part of the scientific method. The two key variables in any experiment are the independent and dependent variables. The independent variable is controlled or changed to test its effects on the dependent variable.
Answer:
The students have medium potential energy on platform A. They have high potential energy on platform B, and low potential energy on platform C.
Explanation:
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They are the “food” requires for plants to undergo photosynthesis which creates glucose (an essential nutrient for all life). And since plants are at the bottom of the food chain, “what they eat” can be commonly found at the bottom too.
After the blood enters the right ventricle, it passes through the pulmonary valve and enters the lungs via the pulmonary artery.
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