<span>What type of fertilization requires a great excess of egg and sperm gametes because most are wasted? external fertilization. </span>
Red blood cells have a flattened disk shape. This relates to their function as this shape increases the surface area to volume ratio for better gas exchange.
Answer:
Helium has many unique properties: low boiling point, low density, low solubility, high thermal conductivity and inertness, so it is use for any application which can exploit these properties. Helium was the first gas used for filling balloons and dirigibles.
Enzymes because they are proteins that act as catalysts within living cells. Catalysts increase the rate at which chemical reactions occur without being consumed or permanently altered themselves.
Hope this helps! Please correct me if I'm wrong :)