When a girl turns 15, she is considered ready to . 1. date
2. graduate
3. vote
4. drive

um i think date.

Explanation: driving liscence is 16. Voting u gotta be old and gradting is usually at 18

when the outside temperature is too cold, an endothermic animal can generate heat by shivering. endothermic animals must eat much more often than ectothermic animals since it takes energy to maintain a constant body temperature.