B: Warm front
Because if the cold front air says at the bottom then the hot or warm air should rise
<span>If two groups are related, this means that they share a common ancestor. The ancestor may not be a direct parent, rather, it may go back several generations. Nonetheless, if they are related, they have a common ancestor up the line somewhere.</span>
The answer is 5.1 because the nucleus will work faster
Prophase: spindle fibers are developed during this phase.