Answer:
A. excrete sodium ions, B. decrease ECF.
Explanation:
We study about the role of sodium and water retaining hormones in controlling extracellular volume. Several natriuretic hormones may also contribute to the volume regulation. One of the most important natriuretic hormone is atrial natriuretic peptide (ANP). It is a peptide hormone and is released by the cardiac atrial muscle fibers.
Overstretching of atria which can result from excess blood volume, is the stimulus for the release of ANP. Once released it enters into circulation and acts on kidneys to increase the glomerular filteration rate. It also decreases the absorption of sodium from collecting ducts. In other words it increases the secretion of Na+ along with water thereby reducing the blood volume and volume of ECF.
The excess loss of salt along with water helps to compensate for the extra blood volume.
ANP or atrial natriuretic factor (ANF) opposes RAAS i.e Renin Angiotensin Aldosterone System.
Replication is important in science so scientists can “check their work.” The result of an investigation is not likely to be well accepted unless the investigation is repeated many times and the same result is always obtained.
Is that in evolution? Genetic modifications and advancement in DNA helps organisms survive better in their environment
<span>You can express the gene of one organism in another one because the translation from DNA to protein is the same in all organisms. For the same nucleotide sequence, you will get the same amino acid sequence in your protein. There are some epigenetic differences between eukaryotes and prokaryotes (this means, the DNA is modified differently in the organisms). But you can avoid that.</span>