What does the multiregional hypothesis suggest would cause a single species of modern human to envole?

Why do cats' pee smell like ammonia? What are normal fel d1 levels in cats? What is the appropriate antibiotic treatment for a kitten with an infection? What is Appaloosa horse diet? Who is the heat miser frOm Rudolph? What causes a animal to bloat? Why does my cat scream at night? Why does a dog lay down when another dog approaches? What is the difference between a herring and a smelt? What would you do if your pet is missing? How do you make organism stronger? What are the two independent methods used in dating events in Earth's history? Why do you like science? What sort of habitat they live in? Did the dinosaours eating change with the environment? Is maintenance of body temperature within certain limits essential for the life of the whole organism? How long can you leave a spa without water? What is a coarse file with separate teeth? Why does a cat have a twitchy tail? What are the biotic factors of the savanna grassland biome?