Answer:
oxygen, let me know if this helps
The reproductive system. The seeds are a mean for plants to reproduce themselves
Respiratory rate: A person's respiratory rate is the number of breaths you take per minute. The normal respiration rate for an adult at rest is 12 to 20 breaths per minute. A respiration rate under 12 or over 25 breaths per minute while resting is considered abnormal.
Without our rotation winds would move straight from the poles to the equator.
