Examlex
The cell theory provides the major single distinction between living and nonliving things.
Neural Tube Defects
are birth defects of the brain, spine, or spinal cord, occurring when the neural tube does not close completely during early fetal development.
CO2
Carbon dioxide, a colorless, odorless gas produced by burning carbon and organic compounds and by respiration, and absorbed by plants in photosynthesis.
O2
Symbol for oxygen, a vital element necessary for respiration in most living organisms.
Prostaglandins
Lipid compounds that have diverse hormone-like effects in animals, including mediating inflammation and pain.
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