Birds, insects, and many reptiles excrete nitrogenous waste in the form of uric acid, which saves water.
Nitrogenous waste in the body tend to form toxic ammonia, which must be excreted. Mammals such as human excrete urea, while birds, reptiles, and some terrestrial invertebrates produce uric acid as waste in the form of a white paste or power. The production of uric acid involves a complex metabolic pathway that is energetically costly in comparison to processing of other nitrogenous wastes such as urea or ammonia, it has the advantages of reducing water loss and, hence, reducing the need for water.
Im not for sure but i think its D if that helps any
Answer:
- Llegada de polen al ginecium.
- Formación de tubos de polen.
- Fertilización del gameto femenino.
- Formación de frutos y semillas.
- Germinación de la semilla.
- Producción de las flores.
- Desarrollo en un embrión en una nueva planta.
Explanation:
*Se adjunta un diagrama detallado y etiquetado del ciclo de vida de la angiosperma.