Answer: Polarity of a Water Molecule
Explanation: Water (H2O) is polar because of the bent shape of the molecule. The shape means most of the negative charge from the oxygen on side of the molecule and the positive charge of the hydrogen atoms is on the other side of the molecule. This is an example of polar covalent chemical bonding.
Answer:
Explanation:
Human impact on the ecosystem is something done by humans and gives the affect at the ecosystem like chopping down forests,and cars burning off greenhouse gases.Humans can effect the ecosystem in a negative way ,by pollution, waste dumping, over hunting of animals,over fishing,industrial gases,energy use
Answer:
B. An idea supported by evidence.
<span>The communication in which molecules move from one place to another inside of a cell is intracellular type of communication, molecular signal. Answer:B
The molecular signals can be one of the following four types:
</span>Endocrine, Paracrine, Neuronal and Juxtacrine.
