Explanation:
- One of the main differences between adult and fetal circulation is <em>the direction and where the non-oxygenated and oxygenated blood circulates</em>. In adults arteries carry oxygenated blood away from the heart and veins carry non-oxygenated blood towards the heart; in fetuses, arteries carry non-oxygenated blood away from the heart and veins carry oxygenated blood back to the heart.
- Another difference is <em>where does the exchange of gases takes place</em>, in fetuses blood is oxygenated in the placenta, in adults in the lungs.
- The circulation between adults and fetuses differs in <em>where does the pressure increases</em>, in adults is on the left side of the heart, in fetuses on the right side.
- Finally,<em> another important difference between adults and fetuses is the presence of shunts</em>, in fetuses these shunts allow both sides of the heart to work parallelly letting mix blood from both ventricles. This shunt gets closed after birth, so adults do not have them.
I hope you find this information useful! Good luck!
A There are no surviving species if a mass extinction occurs
The answer is "C. gemmae."
The answer is to clone a plant asexually.
Cloning occurs naturally in some plants. Plants can clone themselves by asexual reproduction and, thus, produce identical copies of themselves. In asexual reproduction, there only one parent is necessary. There is no gamete fusion, no mixing of genetic information, so the offspring is genetically identical. So, after a horticulturist succeeds in breeding gardenias and wants to keep its line, it should clone it asexually. That way <span>a particularly desirable set of traits will pass to all offspring.</span>
