B is correct because I have learned Psychology relating to this
Answer:
the answer is D) a structure composed of a number of tissues that work together to perform a specific task.
Explanation:
all organs work together to keep us healthy. that's why they're called "organ systems." a system works together!
Going to jail and getting killed
1. Start up a bedtime routine every night at the same time so that your body and mind know when it is almost time to sleep.
2. Take natural supplements like melatonin to give your body the sleep vitamin
3. Make sure your room is completely dark or put on a sleep mask
4. Put warm socks on and warm up your hands
5. Get a cup of chamomile tea with honey
6. If fall else fails ask your doctor for sleep inducing medication.
Most allergic reactions occur with rashes and trouble breathing.