Answer:
When current flows through a conductor such as a copper wire, all of those electrons that were previously moving about randomly get together and start moving in the same direction. A very interesting effect then happens: The electrons transfer their electromagnetic force through the wire almost instantaneously.
Explanation:
Answer:
5] Neutron: Charge= 0 Atomic mass unit = 1
10] <u>Hydrogen:</u>
Number of protons = 1
Number of neutrons = 0
Number of electrons = 1
Atomic number = 1
<u>Helium:</u>
Number of protons = 2
Number of neutrons = 2
Number of electrons = 2
Atomic number = 2
<em>Note:</em>
<em>Atomic number = proton number</em>
<em>Neutron number = Mass number - atomic number</em>
<em>Number of electrons = number of protons</em>
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Pond ecosystem considered as an open ecosystem because pond is always open . There is an interaction of pond with atmosphere , due to which it ecosystem becomes open.
Answer: English
A eukaryote contains a well-defined nucleus, whereas in prokaryotes, the chromosome lies in the cytoplasm in an area called the nucleoid. In eukaryotic cells, DNA and RNA synthesis occur in a separate compartment from protein synthesis. In prokaryotic cells, both processes occur together.
Explanation: Espanol (Spanish)
Un eucariota contiene un núcleo bien definido, mientras que en los procariotas, el cromosoma se encuentra en el citoplasma en un área llamada nucleoide. En las células eucariotas, la síntesis de ADN y ARN se produce en un compartimento separado de la síntesis de proteínas. En las células procariotas, ambos procesos ocurren juntos.
Answer:
Having a cell membrane ,with pores; that regulates substances entering and leaving the cells;
cytoplasm;contains sugar and salts for maintaining it's osmotic pressure; also has a liquid medium; for all biochemical reactions;
having nucleus; contains chromosomes having heridetary material; and controls all activities of the cells.
