The egg is produced by the female part the "ovaries", then sent down to the fallopian tube during sexual reproduction which then where the sperm and egg meet which then forms a baby that grows in the uterus for 280 days or 40 weeks. :)
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that looks complicated
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please do not answer other's question if you don't know the answer
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Cells can die because they are damaged, but most cells die by killing themselves. Some cell death processes leave no trace of the dead cell, whereas others activate the immune system with substances from the dead cell.
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Answer:
an enzyme is a protein which is used to break down food
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How much carbon dioxide is produced when different fuels are burned?
Different fuels emit different amounts of carbon dioxide (CO2) in relation to the energy they produce when burned. To analyze emissions across fuels, compare the amount of CO2 emitted per unit of energy output or heat content.
Pounds of CO2 emitted per million British thermal units (Btu) of energy for various fuels:
<span><span> Coal (anthracite) 228.6</span><span> Coal (bituminous) 205.7</span><span> Coal (lignite) 215.4</span><span> Coal (subbituminous) 214.3</span><span> Diesel fuel and heating oil 161.3</span><span> Gasoline 157.2</span><span> Propane 139.0</span><span> Natural gas<span> 117.0</span></span></span>
