Genetically, even though they don't look alike or have the same function, they come from the same structure of the last common ancestor.
Answer:
c.Endocrina
Explanation:
El sistema endocrino consta de órganos que producen sustancias químicas especiales llamadas hormonas.
Las hormonas son mensajeros químicos secretados directamente en el torrente sanguíneo que regulan diversas actividades en el cuerpo.
Por lo tanto, el sistema endocrino secreta sustancias químicas en el torrente sanguíneo.
Excreting urea helps in maintaining internal homeostasis by retaining water.
The mammals like humans excrete urea, while reptiles and birds, and some terrestrial invertebrates generate uric acid as waste. Generating uric acid in place of urea is beneficial as it is less toxic and diminishes water loss and the subsequent requirement for water.
This retention of water helps birds and reptiles to sustain internal homeostasis mainly in hot weather.
I believe the answer is B (C). Mitosis is the process of cell division that takes place in the somatic cells where a parent cells divides in two diploid daughter cells. Prometaphase is the second phase of mitosis, the process separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. During this stage, the physical barrier that enclose the nucleus (the nuclear envelop ) breaks.
<span>Cellular junctions are the areas that hold the adjacent cells together and allows them to communicate. They are made of multi-protein complexes and exist within the tissues of the cell.</span>
