Metabolic waste. 'Metabolic wastes or excretes are substances left over from metabolic processes (such as cellular respiration), which cannot be used by the organism (they are surplus or toxic), and must therefore be excreted. This includes nitrogen compounds, water, CO2, phosphates, sulfates, etc. Animals treat these compounds as excretes.
Flan is an open pastry or sponge cake containing a sweet or savoury filling. A typical flan of this sort is round, with shortcrust pastry, usually coated with sweet syrup.It is similar to a custard tart or a South African melktert. British savoury flans may have diverged from the Spanish and French custard flans (also known as creme crÃ¨me) caramel in The Middle. ages typical flan of this sort is round, with shortcrust pastry, usually coated with sweet syrup. It is similar to a custard tart or a South African melktert.
A simple flan is made with common ingredientsâeggs, milk, sugar, and vanilla or cinnamon for flavoring. These staple foods were typically found in most households regardless of income. As something a person could whip up with what they had, it quickly gained its place as a standard in many cultures.tâs made with milk, eggs, sugar and vanilla. The ingredients are placed in a caramel lined pan, cooked in a water bath, then chilled to create a caramel laden treat which is flipped onto a plate for serving.