Answer:
The correct answer would be B. semi-permeable.
Plasma membrane of any cell including red blood cell is semi-permeable in nature as it is made up of lipid bilayer.
It permits the passage of certain substances across the membrane while it blocks other substances.
Gases, small uncharged or non-polar substances such as oxygen, carbon dioxide, et cetera can easily pass through the cell membrane of a cell.
Large or charged molecules such as proteins, sodium ions, potassium ions et cetera can not pass through the cell membrane. They require carrier proteins to pass through the membrane.
The correct answer is B. Pinna because auris externa is the external portion of the ear, which is called auricle ( also known as pinna ).
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Answer:China is officially known as the People's Republic of China.
China has the largest population in the world, with over 1.3 billion people (1,343,239,923) as of July 2012.
China is the 3rd largest country by area at 9,706,961 sq km (3,747,879 sq miles).
China belongs to the continent of Asia.
Explanation:
Answer:
A critical function of proteins is their activity as enzymes, which are needed to catalyze almost all biological reactions.
The correct description of alcoholic fermentation is the anaerobic pathway carried out by yeasts in which simple sugars are converted toethanol<span> and carbon dioxide</span>
