Answer: A Peptide bond
Explanation: “The primary structure of a protein consists of amino acids chained to each other. Amino acids are joined by peptide bonds. A peptide bond is a type of covalent bond between the carboxyl group of one amino acid and the amino group of another amino acid.”
You answered a question, did you mean to answer someone else's question? :o
Answer:
d. FGF2 signaling, splanchnic mesoderm
Explanation:
Hemangioblasts are the cells that serve as common precursors for blood vessels and blood cells. The hemangioblasts develop from mesenchyme and can give rise to angioblasts (to serve as precursor cells for blood vessels) or pluripotent stem cells to serve as a precursor for blood cells.
The basic fibroblast growth factor (FGF2) is one of the three factors required for initiation of formation of blood vessels. The basic fibroblast growth factor (FGF2) is required for the development of hemangioblasts from the splanchnic mesoderm and their differentiation into angioblasts.
Activities in the large intestine that is absorption of water from feaces maintain the water level in the body
Sounds quite appealing as the molecules listed are relatively common. However, they are only reactive under precise environmental conditions, including energy, which are far from adequate to produce the progressively higher levels of complexity required for the levels of biochemical assembly needed for life.
The next higher levels also require sulfur and phosphorus for the formation of homochiral amino acids and sugars, which are elemental level molecules required for DNA construction, which is found in all living things. These ostensibly are the "organic molecules" but only function as homochiral versions.
The mixture is solids, liquids and gases, which makes a name of mythical primordial or prebiotic soup most likely.