1. Well developped offspring, and portable baby food despencing. Mamalian young are generally quite well developed when they are born, and the parent does not need to find any specific types of food for the new born since the mother already provides te perfect nutrition.
2. Internal heating allows mammals to remain quick and active in cold climates.
3. Fur is really effective and cheap to produce.
Answer:
what?! my one working breain cell is like" what?!
me no uNdErStanD "
Explanation:
The cell process is being described is cytokinesis.
The rock walls would be wethered down by the water and would chip off and be grinded down
Isn’t that like tectonic palges