Answer:
fully oxygenated blood returning to the amphibian heart can undergo additional pumping to reach higher pressures.
Explanation:
Fishes have a two-chambered heart with one atrium and one ventricle. The blood is pumped from the atrium into the ventricle. Ventricle pumps blood into a single circuit of blood vessels. Blood is oxygenated as it passes through capillaries in the gills. As blood circulates through the gill capillaries, it has low blood pressure and therefore, is delivered very slowly to the other organs.
The amphibian heart has two atria and one ventricle. A sinus venosus collects oxygen-poor blood and pumps it into the right atrium. Oxygenated blood from the lungs passes directly into the left atrium. The left atrium pumps the oxygen-rich blood into the arteries that conduct it to the various tissues of the body. Therefore, a three-chambered heart in reptiles allows the delivery of oxygenated blood with high blood pressure.
Short explanation:
It is true that all animals including humans share a common ancestor, so we're all related in a way. Turns out, some species are more similar to other since they shared a longer "common-evolutive path".
Comparison:
If we compare antelope and squirrels, we might see they don't have much in common. Antelopes are bigger, have a different diet, have a differnt habitat, have a different colour, have horns, etc. And all that also applies to squirrels.
If we compare rabbits and squirrels, we can see that the have a similar size, similar diet, alike teeth, a similar habitat in some occasions, etc.
Answer:
The most logical prediction would be that rabbits and squirrels have more similar DNA than antelope and squirrels.
Hope it helped,
BioTeacher101
Answer: cool man good for you what’s your y.t channel
Explanation:
Answer:
Planet A: Mars
Planet B: Earth
<em>Explanation</em>:
I got it right on Edge 2020, your welcome :)
