Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
Ionic bonding in table salt (NaCl)
Molecular complementarity permits tight protein bonding via multiple noncovalent
Covalent Bonding.
Attraction between water molecules showing polar covalent bonding.
Hydrogen bonding patterns for the a- and 310 helices