Um, I'm pretty sure your just giving out information, not a question, right?
Answer: Nuclear Envelope
Explanation: The nuclear envelope (NE) (also known as the perinuclear envelope, nuclear membrane, nucleolemma or karyotheca) is a double lipid bilayer that encloses the genetic material in eukaryotic cells. The nuclear envelope also serves as the physical barrier, separating the contents of the nucleus (DNA in particular) from the cytosol (cytoplasm).
Answer:
1) the plasma membrane of cells
Explanation:
Phospholipids are made of a phosphate group and fatty acid chain. The phosphate group is hydrophilic (attracted to water), while the fatty acid group is hydrophobic (repelled by water). This is important to the membrane because it allows for the cell to interact with the water inside and outside the cell. Therefore, the answer is number 1.
Answer:
About 100 earthquakes per year are strong enough to cause damage.
Most earthquakes are not strong enough to be felt by humans
Explanation:
Earthquakes happen very frequently because the earth’s tectonic plates are always on the move (though just a few inches per year) and they collide or brush against each other causing stress that is released regularly as earthquakes. Close to a million earth tremors that are undetectable to humans occur every year. These are 2.4 Ritcher and less in magnitude. However, every year there are about 100 earthquakes above 6.0 Ritcher in magnitude that cause damage.