Answer:
either the x or y chromosomes
<span>It is a membranous sac attached to an embryo, functioning as the circulatory system of the human embryo before internal circulation begins until about 3 weeks of age if I recall. It also forms the umbilical cord. A collet is used for clamping purposes. It forms a collar around an object, and clamps down on it as it is tightened. A 5C collet has external threads used for lathes..</span>
Answer:
Volcanic eruptions help provide fertile soils (Option A)
Explanation:
There have been numerous confirmation of the existence of fertile lands around regions known to have experienced volcanic activities. The regions around Mount Vesuvius is not an exception even though volcanic activities around the region are over thousands of years ago.
This is because, when Volcano occurred in such regions, it deposited volcanic materials rich in minerals. The materials are then weathered or broken down by the action of water or erosion to release nutrients into the soil.
Answer:
The cascade amplifies the cellular signal, thereby receptor activation lead to potent responses
Explanation:
Usual signal transduction is produced by protein phosphorylation, this posttranslational modification activates signal transductors in order to bind receptors and ligands. In multicellular organisms, the signal transduction pathways regulate critical cellular processes including, for example, cell communication
