Answer:
What had been an almost purely agricultural economy in 1800 was in the first ... The Southern lag in industrial development did not result from any inherent economic ... As both the North and the South mobilized for war, the relative ... He made good on his promise by signing the Homestead Act into law on ...
Explanation:
It's called peristalsis. It occurs through the oesophagus all the way through the digestive tract.
Answer:
Human anatomy is the scientific study of the body's structures. ... study anatomy without an understanding of the physiology that a body structure supports.
Explanation:
Answer:
A cell membrane is made of two layers.
The cell membrane is composed by a phospholipid bilayer where the interior side is hydrophobic and non-polar, while the outside is hydrophilic and polar
Pores and proteins in the cell membrane allow passage through it.
The pores and proteins in the cell membrane have several functions such as, for example, cell signaling (proteins) and selective transport (pores)