What does stability mean in term of air movement

According to the theory of punctuated equilibrium, at what rate does speciation occur? species change depending on the rate of natural selection. after periods of stasis, new species evolve relatively rapidly. species change slowly and eventually form new species. some species change quickly and others change slowly to balance the overall rate.

The location of the stomach is the diaprham

Aperson with age is more likely to catch diseases that healthy people usually don’t catch. what are these infections called?