Answer:
nervous system and autonomic system
Explanation:
because our nervous system is divided into two parts
Regular physical activity can help prevent or manage many health conditions including high blood pressure, diabetes, depression, Osteoporosis, and Obesity. Im not sure if its your text book answer but i am a personal trainer and i gave you more than one benefit to choose from. Physical activity should be a way of life for everyone
Elderly people are most at risk
from minor trauma that results in serious spinal cord injury because of
preexisting degenerative vertebral disorders. Males are more prone to spinal
cord injuries than females but not as a result of preexisting disorder. This
may be related to an increased involvement in contact sports or a propensity to
participate in high risk activities. Neither females nor infants are at any
particular risk for spinal cord injuries.
Answer:
It would be an ecosystem. The ecosystem is a biotic community in which living organisms such as plants and animals interact with the non-living components of the environment such as sunlight, water, soil, rocks, etc.
Hope this helped
