Answer:
As a boy, I recommend that you should keep on trying your best, and don't give up. Practice on your own.
And for your friend that's mad at you, you should just sit down and work things out between you two.
Answer:
nose --> respiratory system
skull --> skeletal system
kidneys --> Urinary system
veins --> circulatory system
Explanation: I hope this helps!
Answer:
They are used to identify complex definitions or Labels
Explanation:
They may use symbols to show a diagram or idenify which strain or "Timeline" (outcome) it belongs to.