Answer:
Explanation:
The skeletal system
The skeletal system works as a support structure for your body. It gives the body its shape, allowing movement.
Answer:
ITS the first one
Explanation:
check again plz I don't want to give you the wrong answer
Answer:
plss mark me as BRAINLIEST
Explanation:
Human activities have greatly increased carbon dioxide levels in the atmosphere and nitrogen levels in the biosphere. Altered biogeochemical cycles combined with climate change increase the vulnerability of biodiversity, food security, human health, and water quality to a changing climate.