If it's the first mammal on earth then it's a type of reptile not pretty sure the name and what it looks like but it's a type of reptile for sure even though generation to generation we Been evolve by different types of mammal but before they where all fish a type of fish idk yet though lol.
This is a very confusing question since it sounds more like a statement. sorry really wish I could help :(
30% and 70% dont usally suffer from excess bleeding
Answer:
Chromosomes become visible, crossing-over occurs, the nucleolus disappears, the meiotic spindle forms, and the nuclear envelope disappears.
Explanation:
The duplicated homologous chromosomes pair, and crossing-over (the physical exchange of chromosome parts) occurs.
