Yes, blood doping can improve your performance. Red blood cells contain lots of oxygen, thus, by filling your body with this oxygen-rich blood, you gain a lot more endurance and strength.
Endemic species and were studied by Charles Darwin<span> during the voyage of the Beagle. His observations and collections contributed to the inception of Darwin's theory of evolution by natural selection....
Hope this helps.!
</span>
The initial stages of human embryogenesis.
8-cell embryo, at 3 days.
Blastocyst with an inner cell mass and trophoblast.
Trophoblast differentiation.
Histogenesis of the three germ layers.
Artificially colored - gestational sac, yolk sac and embryo (measuring 3 mm at 5 weeks)
Embryo attached to placenta in amniotic cavity.
The answer is number 2. The whopping crane