Humoral immunity is immunity from serum antibodies produced by plasma cells. More specifically, someone who has never been exposed to a specific disease can gain humoral immunity through administration of antibodies from someone who has been exposed, and survived the same disease.
A chemical called endorphins, which corresponds to the receptors in your brain the feeling of pain. <span>Endorphins can also cause a positive feeling in your </span>body<span>, similar to that of morphine.</span>
Answer:
The supercontinent Pangaea in the early Mesozoic (around 200 million years ago)
Dinosaur evolution after the Triassic followed changes in vegetation and the location of continents. In the Late Triassic and Early Jurassic, the continents were connected as the single landmass Pangaea, and there was a worldwide dinosaur fauna mostly composed of coelophysoid carnivores and early sauropodomorph herbivores.[82] Gymnosperm plants (particularly conifers), a potential food source, radiated in the Late Triassic. Early sauropodomorphs did not have sophisticated mechanisms for
Main article: Feathered dinosaurs