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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.

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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

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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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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

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Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Testing the reducing atmosphere hypothesis for the origin of life - the Miller and Urey experiment. Testing the reducing atmosphere hypothesis for the origin of life - the Miller and Urey experiment.
Zygotic life cycle, illustrated by the unicellular flagellate genus Chlamydomonas Zygotic life cycle, illustrated by the unicellular flagellate genus Chlamydomonas
The life cycle of a zygomycete, the black bread mould Rhizopus stolonifer. The life cycle of a zygomycete, the black bread mould Rhizopus stolonifer.
Part of a Semantic Network in Long-Term Memory Part of a Semantic Network in Long-Term Memory
First Day of My Life First Day of My Life
Life cycle of a typical flowering plant. Life cycle of a typical flowering plant.
Video: Buffers definition and the role of buffer in the body

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